Think of incidents in your life that you wished never occurred.
Wouldn’t you wish to erase that past from your memory?
If said past is detested, then killing the past would erase it from existence.
“Kill the Past” is a loosely connected series of videogames revolving around the lives of individuals who are in conflict with their pasts. The purpose of this editorial is to give you a basic outline of the series. For a more in depth look at the games, you can refer back to their Analysis pages.
What does “Kill the Past” mean?
“Kill the Past” refers to one who dwells on or erases a traumatic event from their memory. Those who manage to maintain their self-consciousness, do so only through repetition of a set of patterns that reflect or mirror their past. In many cases that trauma (the past that you wish to kill, or erase from your memory.) must be confronted head on in order for that past incident to be settled.
You must kill the past (traumatic events that you need to quell in order to move on with your life.) in order to live for the future.
Who are the protagonists of Kill the Past?
While most of these titles take place within the same setting or timeline, each game follows a different cast of characters, each with a different perspective in life.
(Moonlight Syndrome: highschool students; The Silver Case & The 25th Ward: detectives & a reporter; Flower, Sun and Rain: self employed professional; Killer7: political assassin; No More Heroes: pop-culture obsessed otaku; Killer is Dead: state executioner; Kurayami Dance: undertaker.)
This diversity in points of view & lifestyles is what allows the series to explore a wide variety of settings and themes (ranging from geopolitics to forbidden love, the superficiality of pop culture or the relationship between violence & political power) while mantaining its core themes althrough.
The KTP setting is loosely based off of our perception of the world. Just like in real life, none of us has all the answers to life, death & spirituality.
Therefore, details about the world, the information you are given and even the look and feel of the game, will reflect the state of mind of the player character, and will thus vary wildly from game to game.
Here’s an interesting quote from Suda 51 in relation to Moonlight Syndrome, which I think applies to most other KTP games.
Could the story of Moonlight Syndrome be considered to have taken place within Ryo’s inner universe? Or do the inexplicable events that occur during the story actually occur in the real world?
What would happen if the phenomenon of mental revolution that Ryo undergoes, triggered by the death of Kyoko, happened not just to him but to the whole of Hinashiro? The headmaster, Kimika Takahashi, the people at the club… If all of the people scattered across town, too many to depict, were to simultaneously undergo this internal revolution…
I think of it as a realistic story with this exaggerated to an extreme.
Ryo definitely does exist within Hinashiro, and he experiences a realistic story up until Dowaku. There is no definite explanation for the epilogue. You could say that all of the characters in the story are walking along by themselves, and so at one point I had to rewrite the epilogue due to the circumstances of their journeys. The events are completely different.(Source)
My personal interpretation being that the settings themselves could be considered an externalization of the characters’ inner turmoils. The world as we see it, is being shaped by their personal perspective, hence why every game has a distinct look & feel.
How do the games connect to each other?
The plot of the Kill the Past series is like a water current. Each game fills in more and more details about the overall setting, but no matter what, the story keeps on moving forward without an end.
Characters will begin their arc in one game, just to finish it in another. Characters can also be killed off screen, or moved on to a completely different walk of life through the years.
EXAMPLES: The surviving cast from Moonlight Syndrome, eventually appears in The Silver Case and Flower, Sun and Rain. The surviving cast from The 25th Ward, eventually reappears in Travis Srikes again.
The over-arching plot works the same way; It cannot be grasped in its entirety just by playing one game, because each game usually adds a new layer to the plot or concludes a story arc from a previous game.
EXAMPLES: The cryptic ending of Moonlight Syndrome & its focus on the television medium are expanded upon in Killer7; Toriko’s true nature in Flower, Sun and Rain is hinted at with the concept of “Observers” being introduced in The 25th Ward.
For a more detailed breakdown on how each game connects to the others, I raccomend checking out their Analysis section.
What is the chronology of Kill the Past?
The chronology of this metaseries can be very confusing, especially considering that most GHM games include references or continuity nods to each other.
To make things simpler, I decided to separate the main entries in three broad eras.
This chronology is based on in-game dates, official complementary materials such as guidebooks and fanbooks and the Silver Case timeline posted on the official website.
More often than not, each game takes place in or close to its release year.
Keep in mind that there is also a variety of ancillary materials that were written by either Suda Goichi himself, or long time collaborator Ooka Masahi, and could be considered canonical. I will be covering those in the Merchandise section.
The Syndrome Era:
The Syndrome games actually predate the foundation of Grasshopper Manufacture. Suda Goichi worked on these games while he was an employee of Human Entertainment. His control over the project grew esponentially; Initially stepping in as a replacement for the director halfway through development of the first game, by the time Moonlight Syndrome came out he had enough influence as the main director and writer to turn the game into a wholly original, esoteric project that is considered controversial among Syndrome fans to this day.
This era also marked the beginning of the collaboration between Suda Goichi and Ooka Masahi, who would collaborate with Suda on many of the following games. He was the writer of the Truth Files, collections of faux journalistic reports retelling the story of all three games from the point of view of various journalists.
1996-1997: Twilight Syndrome
Twilight Syndrome actually refers to a duology of games: Tansaku-hen (Search Chapter) and Kyuumei-hen (Investigation Chapter).
While these games are not really part of the KTP franchise, Moonlight Syndrome (the origin point of many of the KTP recurring themes) is a direct follow up of these two games.
The ending of each game actually leads directly into the next one as a continuous narrative. (As in the ending of Tansaku-hen leads directly into Kyuumei-hen, while the ending of Kyuumei-hen leads directly into Moonlight Syndrome.)
The Twilight Syndrome games are horror themed adventure games revolving around a trio of highschool girls: Yukari Hasegawa (the player character), Chisato Itsushima and Mika Kishi, investigating various apparitions in their town of Hinashiro.
The theme of killing the past is present in these two games, but it is mostly related to exorcising the past sins that caused the ghostly apparitions rather than the focus on personal trauma it would take later in Suda’s career.
Other canonical media:
The Twilight Syndrome Truth Files
1997-1999: Moonlight Syndrome
This game is the origin point of most of the recurring themes of the KTP universe. While the Twilight Syndrome games are chronologically the first games in the KTP timeline, either this game or The Silver Case can be considered the true start of the canon.
This game is described by Suda himself as a psychological horror; while, on a surface level, it retains the supernatural horror elements of its predecessors, the focus is put squarely on the characters’ inner turmoil and psychology.
The Moonlight Syndrome after which the game is titled refers to the way moon phases influence human behaviour & sanity. Which is why characters tend to behave erratically and crazy through the game. A Lunatic being a person who is particularly influenced by the lunar phases.
(The full moon would make a return in all subsequent KTP games in one form or another; The full moon itself also carries a theme of transformation, which may be related to the concept of killing one’s past in order to move on to the future. It is worth noting that repressing one’s memories often has the effect of transforming said character into a completely different person through the course of certain KTP games.)
The game’s main plot revolves around the relationship between Ryo Kazan and Mika Kishi, a returning character from the Twilight Syndrome games.
Ryo is devastated by the loss of his sister Kyoko, with whom he shared a twisted, incestuous love. (Kyoko was actually dating another man, a womanizer called Sumio Toba. Meanwhile, Sumio’s sister, Rumi Toba, used to date Ryo in the past.)
It later turns out that Kyoko’s death was actually caused by Sumio, who made a contract with a mysterious white haired boy in order to separate Kyoko from Ryo, and have her all to himself.
The white haired kid would later present Kyoko’s head to Sumio, in a paper bag. (The paper bag would later make a return in Killer7.)
Ryo would fall in love with Mika Kishi due to how similar she is to his late sister.
When Mika’s life is put in danger, Ryo enters into a contract to save her life, the condition of which is that Mithra will take possession of the first girl Ryo will hold in his arms. (In other words, Ryo is forbidden from becoming intimate with Mika and vice versa.)
This game also pioneered the structure of most KTP games to come, in which the game is separated into episodes, most of which are stand-alone stories only tangentally related to the main plot, but still revolving around Mithra (the white haired boy) & the Moonlight Syndrome. While the Twilight Syndrome games also had an episodic structure, Moonlight Syndrome was the first one to also have a strong over-arching narrative mixed in with the stand-alone episodes.
(NOTE: This game was originally believed to take place in 1999, and end the same exact night as the beginning of Silver Case. However, the official timeline linked earlier on in the article & official merchandise actually date it as taking place between May & October of 1997. The only way to explain this, is to assume that the very final scene from MS actually takes place 16 months after the rest of the game.)
More on the Syndrome franchise:
The Twilight Syndrome franchise is actually much bigger than the three games I listed. After Human Entertainment closed down in 1999, Spike (later Spike-Chunsoft, a company that employs many ex-Human employees) bought out the brand and produced two more games (Saikai & Kinjirareta Toshi Densetsu), a trilogy of live action movies (meant to coincide with the release of the games), a radio drama, a pachinko machine and I would assume several other ancillary materials.
None of these titles have been translated into english save for a translated playthrough of Saikai. As such, informations on these following titles is contradictory: It is stated by many japanese sources that the following games ignore the events of Moonlight Syndrome, but my personal research seems to indicate that the events of that game are actually acknowledged. That is to say, that the characters who died in that game, remained dead in the Spike titles.
I am not going to cover any of the Spike-era Twilight Syndrome titles, for the simple reason that Suda Goichi had no input whatsoever in their development and as such they would not inform the overall picture of his career.
The Twilight Syndrome also made an appearence as a videogame franchise in Super Danganronpa 2, another Spike-Chunsoft title.
The Silver Case Era:
This era encompasses the first few games that Suda Goichi wrote and directed after founding his own studio, Grasshopper Manufacture.
The supernatural aspects of the Syndrome games are still present, but they exist in the background as the main plots focus mostly on political intrigue and conspiracies.
It is through this era that the meaning of “Kill the Past” cements its ties to personal trauma.
1999-2000: The Silver Case
The Silver Case could be considered the main plot of the KTP multiverse, as it is the game that establishes what is canon & what is not. Even Killer7, which is set in a different continuity/timeline, still borrows heavily from TSC in terms of structure, mythology and themes.
Plus, while later KTP games seem to revolve around one character (FSR: Sumio Mondo, K7: Emir Parkreiner, NMH: Travis Touchdown, KiD: Mondo Zappa), the Silver Case games follow a variety of characters belonging to a multitude of organizations. TSC could be described as a collection of stories that develop & evolve the setting & themes that were originally portrayed in Moonlight Syndrome.
With Silver Case, we indirectly learn that the story of Moonlight Syndrome was actually an isolated incident that was in effect part of a larger overarching story. That story would in fact be “The Silver Case”. The prologue to The Silver Case, is actually the conclusion to the Moonlight Syndrome story arc.
You could say that Suda 51 is actually killing the past in order to move forward with an entirely different set of characters. While at the same time expanding upon the same setting & the core ideas that originally began in Moonlight Syndrome. (The full moon shows up before every single chapter, as the political intrigue of the Silver Case grows more and more insane).
The bulk of The Silver Case takes place within the fictional 24th Ward of Tokyo.
The legendary killer Kamui Uehara awakens after 20 years of being institutionalized as a vegetable, and goes on a killing spree.
In the Transmitter Arc, the player is put in the role of a new recruit in the Hineous Crime Unit, which deals with Transmittable Crimes, and is set to investigate the resurrection of Kamui Uehara, unravelling the secrets behind the foundation of the 24th ward in the process.
(The player character is actually a blank slate through which the player experiences the events of the game. For all intents and porpouses, he’s not really the protagonist of the Transmitter Arc. Tetsugoro Kusabi, a hardboiled, veteran cop, and Sumio Kodai, his rookie apprentice, could be considered the real protagonists of Transmitter.)
In the Placebo Arc, running concurrently with the Transmitter Arc, the player witnesses the case from the eyes of reporter Tokio Morishima, enriching the lore of the 24th Ward and explaining background details of each case from the point of view of a civillian.
2001: Flower, Sun and Rain
This game is a sidequel to The Silver Case, in the sense that it is not a full blown sequel, but it follows up on certain story threads from TSC while reusing some of the same characters in a different setting.
The game revolves around a “searcher”, Sumio Mondo, who is hired by the management of the Hotel “Flower, Sun and Rain”, located in Lospass resort, to find & stop a terrorist who has planted a bomb on an airplane.
However, when checking into his room, Sumio is alerted by the manager, Edo Macallister, that the island is trapped into a groundhog day style time loop: The same day keeps repeating over and over, and the same plane keeps blowing up at the end of each day.
The core conflict is determining where & who the terrorists are, and how to defuse the airplane bombs in time.
Of course the plot isn’t as simple as it sounds. What exactly is Lospass resort? Why does time refuse to move forward? Most of all, who is Sumio?
The game ties up several loose ends from The Silver Case, while at the same time opening up an entirely new set of questions which will be expanded upon in the following title.
2005: The 25th Ward
A direct follow up to TSC & FSR, this game was originally released episodically on japanese cellphones between 2005 and 2007. It recieved a widespread release on consoles & personal computers in 2018.
Set in the eponymous 25th Ward of Tokyo, the game explores a new, experimental society in which people are encouraged to compete with one another over meaningless status symbols, while the Regional Adjustement Bureau, under the cover of the Postal System, will “adjust” (i.e. execute) citizens for any kind of minor violation.
In the Correctness arc, the player once again takes command of a nameless police officer which may or may not be the same as the original TSC, while following the exploits of the 25th Ward Heinous Crimes Unit. Namely, detectives Shiroyabu (a naive momma’s boy) and Kuroyanagi (a hardboiled cop, a sort of female Tetsugoro Kusabi), while they investigate the Regional Adjustment Bureau. (The 3rd chapter is actually named Transmitter, & has several cameos from the original TSC & FSR.)
Meanwhile, the Matchmaker arc follows Tsuki and Osato, two agents of the Regional Adjustment Bureau, as they go through their “adjustment” routine while confronting an enemy from Tsuki’s past.
The Placebo Arc once again follows Tokio Morishima, now an amnesiac, who has been hired to investigate the secrets behind the 25th Ward while trying to recover his own past.
It is interesting to point out that the tagline for this game is actually “Kill the Life” rather than “Kill the Past”, even though erasing one’s past is still a relevant theme within the game.
“Kill the Life” actually refers to the shadow of Uehara Kamui, threathening to awaken once again to destroy “the life” (i.e., the lifestyle of the 25th Ward).
At this point in time, this is the end of the original TSC story arc. Suda has jokingly referred to his plan for a 26th Ward game (Source), but as the sales of 25th Ward were abysmal to say the least, it is unlikely to happen any time soon, if ever.
Other canonical media:
Red, Blue and Green
Alternate Timeline: Killer7
Killer7 is not actually part of the KTP timeline. It does, however, carry over many themes & concepts from The Silver Case era games.
Killer7 takes place in a world where the internet and all transcontinental flights are banned, in order to eradicate the threat of terrorism. The Superpowers’ nuclear arsenals are disarmed, and world peace is achieved.
However, a new breed of religious terrorism, the “Heaven Smile”, starts targeting governmental institutions. The only group that can combat the Heaven Smile threat is the assassin syndicate, the Killer7.
The player takes the role of the eponymous Killer7 as they are employed by the government to hunt down Heaven Smiles and their leader, Kun-Lan. What the public is unaware of, though, is that the Killer7 are actually comprised of one person, being able to phisically transform into his different personalities. Harman Smith, the legendary assassin.
While the premise & presentation are completely different than earlier games, Killer7 actually borrows heavily from The Silver Case, to the point where it could be considered a reboot of sorts. (Killer7 goes for a cel-shaded, american comicbook look. All the dialogue was also originally recorded in english.)
The mission structure mirrors that of The Silver Case.
The prologue is an introduction to the main cast of characters, and is unrelated to the main plot.
The first mission is the main plot. (The Japanese/American conflict in Killer7, the awakening of Kamui in TSC.)
The second mission is an unrelated case. (The Andrey Ulmeyda assassination in Killer7, the suicide case in TSC.)
The third mission focuses on one character, and explains their backstory. (Dan Smith in Killer7, Sumio Kodai in TSC.)
The fourth mission is about propaganda, and how information is spread. (The Handsome Men comicbook & online game in K7, and Kamuinet in TSC.)
The fifth mission is when everything goes to shit, most of the main cast is killed off and the truth is revealed about a decades old incident.
The sixth mission is an epilogue where the consequences of the final chapter are explored.
Killer7 actually had an equivalent to the Placebo reports planned during development, but it was ultimately scrapped. It is however included in the official handbook as the Jaco Reports.
Killer7 also has a multitude of cameos from past KTP games, though as stated in the Hand in Killer7 interview (Source) those should be viewed as just that, cameos. Killer7 cannot coexist within the same timeline as TSC, due to the conflicting backstories detailed earlier.
– Is there a connection between Killer7 and your previous games?
There are cameo appearances. However, there are copyright issues involved, so I created them so that if you asked me if there were a direct connection between the games, I’d say “no.” In my head, I’m creating them in one big world, but the individual settings of the stories are completely different, so it’s not like these stories can be told in the same timeline.
That being said, the story still revolves around a character who has erased his own past, and now lives through the consequences of having done so. Plus, concepts such as Remnant Psyches, the TV being used as a spiritual medium & the paper bag are lifted straight from past KTP games.
It should be noted that while Killer7 does not take place in the main KTP chronology, the characters of Dan Smith, Christopher Mills, Curtis Blackburn and Pedro Montana exist in both timelines.
Other canonical media:
Killer is Dead (short story)
Hand in Killer7
The No More Heroes era:
Through this era of Suda’s career, the supernatural and political aspects of the setting are mostly set aside (though they still exist in the background); instead, a larger focus is given to satyrical comedy and pop culture references, both aspects that were present in his previous titles but have now taken center stage.
Continuity is not as strict anymore; the world of No More Heroes does not follow tridimensional logic, the fourth wall is broken constantly and then broken again to acknowledge its metanarrative.
(It should be noted that fourth wall breaks were also present in previous Suda games, but never had a central role in the narrative itself before the NMH era.)
As such, the games tend to cover more absurd territory; Giant robots, kaijus, aliens, superheroes, tiger gods and talking animals are but a sample of what you’ll come across in the No More Heroes era games.
2007: No More Heroes
No More Heroes was originally conceived as a stand-alone game, unrelated to previous Suda titles (Source). However, its most recent sequel, Travis Strikes Again, recontextualized the game as a part of the original KTP timeline. That is to say, it now takes place two years after The 25th Ward.
In the nondescript american town of Santa Destroy, Travis Touchdown lives the superficial life of a pop-culture obsessed otaku: collecting figurines, watching anime & wrestling matches, playing with videogames and with his cat Jeanne. His day-to-day life is disrupted once the mysterious Sylvia Christel, during a drunk night at the bar, contracts him to assassinate a “drifter” in exchange for a hefty sum of money.
As soon as the assignment is carried out, Sylvia shows up once again to inform him that by killing the drifter Helter Skelter, Travis officially joined the ranking system of the UAA (United Assassin Association), thus making himself a target for any assassin that is ranked lower than he is. Travis has two choices: either run for the rest of his life, or aim for the top spot in the UAA rankings, killing everyone who stands in his way.
No More Heroes was somewhat of a minor hit with general audiences, ushering in a new era for GHM in which they mostly focused on violent action games featuring a snarky sense of humor. Games such as Shadows of the Damned, or Lollypop Chainsaw.
Other canonical media:
Past killing to future killing
The Outer Rim(?)
2010: No More Heroes 2: Desperate Struggle
Three years after Travis settled the score with his past, Santa Destroy is taken over by industry giant Pizza Bat (formerly Pizza Butt) with the help of mobsters; a retired Travis is forced back into action when his friend Bishop, owner of the video store, is gunned down during the takeover.
He is once again forced to climb the ranks of the UAA in order to take down the CEO of Pizza Bat, who just so happens to be the Number 1 Ranked Assassin.
This game was not written nor directed by Suda Goichi, and as such it is lacking the original No More Heroes satyrical edge. Its anime-esque storyline is played completely straight, both in comedy and in drama. I personally do not find this game to be interesting or appealing enough to analyze for a variety of reasons, but it is included here since, due to TSA, it has been cemented as part of the timeline.
Other canonical media:
No More Losers
No More Heroes 1.5
2014-2017(?): Kurayami Dance
NOTE: This is a manga, which was written by Goichi Suda and was based on one of the original scenario drafts for “Shadows of the Damned”. While it was only released in Japan, it has since been translated by Twitter user Falions.
Wataru is an undertaker by day, and a biker by night. One day he decides to test his limits by surpassing 300 MPH on his bike. He claims to be doing so not out of a desire to die, but rather, because he’s in a hurry to live.
This results in a near fatal accident. Wataru wakes up in a mangled body, which takes three years to be fully restored.
Once he awakens, Wataru finds his hometown changed to the point of being unrecognizeable: most of its inhabitants moved to “the castle”, a newly developed urban area which seems to operate under different laws than japanese soil.
As soon as he returns to his workplace, he is immediately offered a job that would lead him to that same castle that everyone seemingly moved on to.
Wataru eagerly accepts the job, feeling that confronting the castle is the only way to reclaim the three years he lost. Everything in The Castle seems to have a connection to his past; what is this world that Wataru awakened into, and what is the abstract presence that keeps following Wataru wherever he goes?
I decided to include this as a main entry because, despite the medium of choice, the story has a similar structure to Flower Sun and Rain, Killer7, or No More Heroes. In the sense that we follow a protagonist’s quest in order to confront his past & come to terms with it, interacting with a setting that seems to be an externalization of his own repressed memories.
While Killer7 was heavily political and No More Heroes had a satyrical element related to how geeks/gamers percieve the world, I feel Kurayami Dance is a more personal story which revolves around coming to terms with childhood memories & experiences.
It should be noted that the timeline placement is just my personal assumption based on certain connections that this story shares with Travis Strikes Again.
2017: Travis Strikes Again
Seven years after No More Heroes 2, Travis Touchdown has abandoned friends and family to live in isolation in his trailerhouse, collecting gaming memorabilia. Shigeki Birkin aka Badman, the father of one of Travis’ victims, finally manages to track him down in order to enact revenge on him. However, just as they are fighting, they get sucked in by the Death Drive Mark II console, which is said to be able to make a wish come true if its six games are found, and completed. Travis and Badman then decide to team up in order to have Badman’s daughter be restored to life.
This game happened to be Goichi Suda’s return to the director’s chair after ten years (since the original No More Heroes game), and he took the chance to tie in the NMH games and several of his more recent titles to the original KTP timeline, while providing closure for a few outstanding plot points along the way.
Namely, one of the main characters of the game is actually a returning character from The 25th Ward, and the 25th ward itself is visited during the course of the game. Due to its nature as an anniversary title (TSA marked GHM’s 20th anniversary), most GHM games are referenced in one way or another, though it remains to be seen how seriously these cameos are meant to be taken.
There is also a number of other Grasshopper Manufacture games that contain references to KTP games.
Though it must be noted that they lack a strong narrative connection to those titles and their storylines do not necessairly revolve around an overt theme of ‘killing the past’, as such, I listed them as separate games.
These games may or may not be canon to the main timeline, point is, even if they were they’d be mostly irrelevant to the ongoing plot. You may think of them as isolated episodes if you’re so inclined. I personally don’t feel their narratives are interesting enough to analyze in-depth.
(The dates indicated here, save for Let it Die, are release dates. I’m pretty sure none of these other games are actually dated in-game.)
1994: Super Fire Pro Wrestling: Special
– The Wrestler Thunder Ryu would make an appearence in No More Heroes, as Travis’ master.
– Morio Smith, the protagonist of the game, is alluded to in No More Heroes.
– The Balboa Brothers from Flower, Sun and Rain are mentioned in a note.
– The Ishizaka conglomerate that appears in most GHM games is referenced in the form of Zaka TV.
2006: Blood+ One Night Kiss
– Ishizaka corporation is once again referenced.
2011: Shadows of the Damned
– It exists as a videogame franchise within the main canon, as shown in Travis Strikes Again.
2012: Diabolical Pitch
– Santa Destroy & Lospass are referenced within the game.
– Its protagonist, the legendary pitcher MacAllister, has a brief appearence in Travis Strikes Again.
2012: Lollipop Chainsaw
– The main character has a very short cameo in Killer is Dead.
2013: Killer is Dead
– The main character has a short cameo in Travis Strikes Again.
2026: Let it Die
– The Death Drive console is used to play through the game itself; a different model of the same console would make an appearence in Travis Strikes Again.
– The construction of the 26th Ward is alluded to in one of its areas, as it is in some endings of The 25th Ward.
– The Earth Rage is mentioned both in this game, and in Travis Strikes Again.
– Mejin, one of the supporting characters, seems to be styling himself after Master Taro Gida, a legendary gamer alluded to in TSA.
Here’s a simplified chronology for quick reference. Main games are in red, side-games (which may or may not be canon) are not.
1994(?): Super Fire Pro Wrestling: Special
1996-1997: Twilight Syndrome: Tansaku-hen / Kyuumei-hen
– Twilght Syndrome: The Truth Files
1997-1999: Moonlight Syndrome
– Moonlight Syndrome: The Truth Files
1999-2000: The Silver Case
– Prequel Comic
– The Silver Case 4.5: Face
2001: Flower, Sun and Rain
– Lospass Guidebook
– One Island, One Resort, and One More Episode
2005: The 25th Ward
– Red, Blue and Green
2006(?): Blood+ One Night Kiss
2007: No More Heroes
– Past killing to future killing
– The Outer Rim
2010: No More Heroes 2
– No More Heroes 1.5
– No More Losers
2011: Shadows of the Damned (is released as a videogame)
– Kurayami Magazine
2012(?): Diabolical Pitch
2012(?): Lollipop Chainsaw
– Prequel Manga
2013(?): Killer is Dead
2014-2017(?): Kurayami Dance
2017: Travis Strikes Again
– Killer is Dead (short story)
2026+: Let it Die
Alt. History 2010-2014: Killer7
– Hand in Killer7