History Literature / TheTatamiGalaxy

* SurprisingleRealisticOutcome: In the Softball Circle episode, the protagonist puts his all into being able to purchase enough Royal Jelly as health supplements to raise in the rankings of the Honwaka circle. He ironically muses that he would be just as healthy if he had done nothing but sleep for the past two years, as he is overworked to have enough money to buy the Royal Jelly to begin with and has to consume massive quantities of it to justify the purchase, even as he recognizes that his body probably can't absorb nutrients past a certain point.

In 2020, the original book received a sequel based on the Makoto Ueda stage play ''Summer Time Machine Blues''. Titled ''The Tatami Time Machine Blues'' (''Yojohan Time Machine Blues''), this book follows Ozu and the Protagonist going back in time to prevent their dorm's air conditioner remote from being broken. In 2021, this book was announced to have a six episode anime adaptation--alongside an official English translation of both novels. This anime was released in Japan on Disney Plus and as a film in fall 2022. The English translation for ''The Tatami Galaxy'' was released in December 2022.

In 2020, the original book received a sequel based on the Makoto Ueda stage play ''Summer Time Machine Blues''. Titled ''The Tatami Time Machine Blues'' (''Yojohan Time Machine Blues''), this book follows Ozu and the Protagonist going back in time to prevent their dorm's air conditioner remote from being broken. In 2021, this book was announced to have a six episode anime adaptation--alongside an official English translation of both novels. This anime was released on Disney Plus in Japan in fall 2022. The English translation for ''The Tatami Galaxy'' was released in December 2022.

In 2020, the original book received a sequel based on the Makoto Ueda stage play ''Summer Time Machine Blues''. Titled ''The Tatami Time Machine Blues'' (''Yojohan Time Machine Blues''), this book follows Ozu and the Protagonist going back in time to prevent their dorm's air conditioner remote from being broken. In 2021, this book was announced to have a six episode anime adaptation--alongside an official English translation of both novels. This anime was released on Disney Plus in Japan. The English translation for ''The Tatami Galaxy'' was released in December 2022.

In 2020, the original book received a sequel based on the Makoto Ueda stage play ''Summer Time Machine Blues''. Titled ''The Tatami Time Machine Blues'' (''Yojohan Time Machine Blues''), this book follows Ozu and the Protagonist going back in time to prevent their dorm's air conditioner remote from being broken. In 2021, this book was announced to have a six episode anime adaptation--alongside an official English translation of both novels. This anime was released on Disney Plus in Japan.

* ShoutOut: The beard the narrator sports in the final story is remarked by himself and others as something akin to Literature/RobinsonCrusoe.

* ArmorPiercingSlap: Akashi can pull these off (and does so, several times). Happens most notably in [[spoiler: episode 9, when the protagonist steals the vehicle she had worked so hard on and attempts to bribe her in order to keep it. He's so affected by the slap and her rejection that he ends up inadvertently trapping himself in the 4.5 tatami galaxy during the next - and final - timeline.]]

* DespairEventHorizon: [[spoiler: The protagonist reaches it in episode 9 after he attempts to bribe Akashi, only for her to give him an ArmorPiercingSlap and disappear completely. This is the catalyst for the protagonist's decision to rewind time once more and never join any clubs, instead completely isolating himself in his room for two years, to the point that he becomes trapped in the titular 4.5 tatami galaxy.]]

The novel was adapted to anime for Creator/NoitaminA's spring 2010 season, directed by Creator/MasaakiYuasa of ''Anime/{{Kaiba}}'' fame, written by Makoto Ueda and produced by Creator/{{Madhouse}}. Creator/FUNimation licensed it for a streaming-only, English-subtitled stateside release on the Funimation website, Website/YouTube, and {{Creator/Hulu}} under the MarketBasedTitle ''The Tatami Galaxy''.

The novel was adapted to anime for Creator/NoitaminA's spring 2010 season, directed by Creator/MasaakiYuasa of ''Anime/{{Kaiba}}'' fame and produced by Creator/{{Madhouse}}. Creator/FUNimation licensed it for a streaming-only, English-subtitled stateside release on the Funimation website, Website/YouTube, and {{Creator/Hulu}} under the MarketBasedTitle ''The Tatami Galaxy''.

In 2020, the original book received a sequel based on the Makoto Ueda stage play ''Summer Time Machine Blues''. Titled ''Tatami Time Machine Blues'' (''Yojohan Time Machine Blues''), this book follows Ozu and the Protagonist going back in time to prevent their dorm's air conditioner remote from being broken. In 2021, this book was announced to have a six episode anime adaptation--alongside an official English translation of both novels. This anime was released on Disney Plus in Japan.

In 2020, the original book received a sequel based on the Makoto Ueda stage play ''Summer Time Machine Blues''. Titled ''Tatami Time Machine Blues'' (''Yojohan Time Machine Blues''), this book follows Ozu and the Protagonist going back in time to prevent their dorm's air conditioner remote from being broken. In 2021, this book was announced to have a six episode anime adaptation--alongside an official English translation of both novels. This anime was released on Disney Plus.

In 2020, the original book received a sequel based on the Makoto Ueda stage play ''Summer Time Machine Blues''. Titled ''Tatami Time Machine Blues'' (''Yojohan Time Machine Blues''), this book follows Ozu and the Protagonist going back in time to prevent their dorm's air conditioner remote from being broken. In 2021, this book was announced to have a six episode anime adaptation--alongside an official English translation of both novels. This anime was released on Disney Plus in Japan.

In 2020, the original book received a crossover sequel with the Makoto Ueda stage play ''Summer Time Machine Blues''. Titled ''Tatami Time Machine Blues'' (''Yojohan Time Machine Blues''), this book follows Ozu and the Protagonist going back in time to prevent their dorm's air conditioner remote from being broken. In 2021, this book was announced to have a six episode anime adaptation--alongside an official English translation of both novels. This anime was released on Disney Plus in Japan.

In 2020, the original book received a crossover sequel with the Makoto Ueda stage play ''Summer Time Machine Blues''. Titled ''Tatami Time Machine Blues'' (''Yojohan Time Machine Blues''), this book follows Ozu and the Protagonist going back in time to prevent their dorm's air conditioner remote from being broken. In 2021, this book was announced to have a six episode anime adaptation--alongside an official English translation of the original ''Tatami Galaxy'' novel. This anime was released on Disney Plus in Japan.

In 2020, the original book received a crossover sequel with the Makoto Ueda stage play ''Summer Time Machine Blues''. Titled ''Tatami Time Machine Blues'' (Yojohan Time Machine Blues), this book follows Ozu and the Protagonist going back in time to prevent their dorm's air conditioner remote from being broken. In 2021, this book was announced to have a six episode anime adaptation--alongside an official English translation of the original ''Tatami Galaxy'' novel. This anime was released on Disney Plus in Japan.

In 2020, the original book received a crossover sequel with the Makoto Ueda stage play ''Summer Time Machine Blues''. Titled ''Tatami Time Machine Blues'' (Yojohan Time Machine Blues), this book follows Ozu and the Protagonist going back in time to prevent their dorm's air conditioner remote from being broken. In 2021, this book was announced to have a six episode anime adaptation--alongside an official English translation of the original ''Tatami Galaxy'' novel. This anime was distributed by Disney Plus in Japan.

In 2020, the original book received a crossover sequel with the Makoto Ueda stage play ''Summer Time Machine Blues''. Titled ''Tatami Time Machine Blues'' (Yojohan Time Machine Blues), this book follows Ozu and the Protagonist going back in time to prevent their dorm's air conditioner remote from being broken. In 2021, this book was announced to have a six episode anime adaptation--alongside an official English translation of the original ''Tatami Galaxy'' novel.

''Yojo-han Shinwa Taikei'' (''A Compendium of 4.5 Tatami Mythology'') is a 2004 novel by Creator/TomihikoMorimi, narrated by an [[NoNameGiven unnamed]] third-year agriculture student at Kyoto University. After getting dumped by a crush in his first year, he's become convinced the idealised, lovey-dovey campus life he expected will never become reality, and as a result, has wasted the last two years ruining the love lives of others at every opportunity with his partner in crime, Ozu. Despite this, the narrator has taken a liking to Akashi, a girl one year his junior.

* GoodIsBoring: The narrator hated being part of Honkawa because there was zero strife to be had. There was no need for seniority, ranks, or gender differences; everyone had a good time playing with each other and socializing with one another. The monotonous pleasantries and fluffy atmosphere suffocated the protagonist.

In 2020, the original book received a crossover sequel with the Makoto Ueda stage play ''Summer Time Machine Blues''. Titled ''Tatami Time Machine Blues'' (Yojohan Time Machine Blues), this book follows Ozu and the Protagonist going back in time to prevent their dorm's air conditioner remote from being broken. This book was announced to have an anime adaptation in 2021--alongside an official English translation of the original ''Tatami Galaxy'' novel.

''Yojo-han Shinwa Taikei'' (''A Compendium of 4.5 Tatami Mythology'') is a 2004 novel by Tomihiko Morimi, narrated by an [[NoNameGiven unnamed]] third-year agriculture student at Kyoto University. After getting dumped by a crush in his first year, he's become convinced the idealised, lovey-dovey campus life he expected will never become reality, and as a result, has wasted the last two years ruining the love lives of others at every opportunity with his partner in crime, Ozu. Despite this, the narrator has taken a liking to Akashi, a girl one year his junior.

* ShoutOut: The beard the narrator sports in the final story is remarked by himslf and others as something akin to Literature/RobinsonCrusoe.

* SharePhrase: Usually, after the narrator's encounter with the fortune teller, someone will run into him jovially asking "a lost little lamb, are we?". Respectively, the people saying this are Ozu (Misogi), Akashi (Proxy War),and Hanuki (Honwaka). Because [[spoiler:the narrator doesn't bond with anyone]] in the final timeline, no one comes for him and says the phrase then.

* BeautyMark: Akashi and Hanuki both have one.

** "You and I are bound by a black string of fate" is the key phrase describing the relationship between the narrator and Ozu, capturing the fact that no matter how chaotic it gets, the two young men will ''always'' be stuck together.

* FracturedFairyTale: The novel's version of the film that got the narrator kicked out of Misogi was a scathing satire of Jogasaki's reign in the club, told through a thinly veiled ''Literature/{{Momotaro}}'' lens. Here, the boy in the peach is named "Masaki" (meant to sound similar to Jogasaki), and he quickly tricks and manipulates his companions in Onigashima with food and ruling over them with an iron fist. In the end, two brave people humiliate him by dyeing him pink, rolling him up in a tatami mat, and throwing him away.

* ShaggyDogStory: Every episode as the narrator ends up lamenting whatever terrible fate's happened to him and wishes for a do-over, with the magical force at work obliging, [[spoiler:or in the tenth episode, is horrified to realize that he's accidentally locked himself into a never-ending purgatory comprised of his own room. The exception is the very last one as he finally gets a happy ending after learning that he should work with what he has, not wishing for infinite do-overs]].

* AdaptationExpansion: The original novel has four major paths the protagonist took (Misogi Film, Honwaka Baseball, being Higuchi's apprentice, and the Lucky Cat Restaurant secret society), plus a handful of other clubs that were mentioned offhandedly. The anime adaptation expands on this and gives the protagonist ten different outcomes, some of which include the throwaway clubs, [[spoiler:and splits the final timeline where he locks himself in him room up]].