Junior High and High School!! Kimetsu Academy Story

Junior High and High School!! Kimetsu Academy Story (！！キメツ) is a spin-off mini series of anime shorts set in the Kimetsu Academy universe.

Synopsis
The Demon Slayer characters get up to all kinds of hijinks while attending Kimetsu Academy in these bite-sized episodes set in an alternate universe.

Special Edition
Kimetsu Academy: Special Edition (！！キメツ『』)

Episode 1: Teacher Giyu asks students to introduce themselves. Tanjiro, Inosuke and Nezuko comply, but when it's Zenitsu's turn his seat is empty. Zenitsu ran away to avoid the introduction, because he thinks Giyu will request him to dye his hair black and get a beating. While running, he gets caught by Giyu who punishes him for running in the halls.
 * Characters: Giyu, Tanjiro, Inosuke, Zenitsu, Nezuko

Episode 2: Teacher Giyu orders the class to change clothes and head to the field for a P.E. lesson. Inosuke is down because he lost to someone smaller than him (Kanao) during track running, while Tanjiro is beaten by Susamaru and Yahaba during dodgeball. However, Zenitsu loves P.E. even though he lost to Aoi on track, because it allowed him to gaze at her from behind, and when she aimed a dodgeball at him, he perceives that as her paying attention to him. Giyu hears what he said and punishes him again.
 * Characters: Giyu, Tanjiro, Inosuke, Kanao, Susamaru, Yahaba, Aoi, Kiyo

Final Episode: Zenitsu has clothing inspection duty. Initially he hated it, as he has to arrive early at school, but upon seeing female students Nezuko, Kanae and Kanao in their uniforms he remembers why he keeps doing it. When Inosuke arrives, he orders him to button up his open shirt, but Inosuke gives him a head butt instead. When Tanjiro arrives, he orders him to remove his Hanafuda earrings, but Tanjiro apologizes for going against the school rules and tells him they are his father's. Zenitsu wants to let him go, but Giyu arrives to stop Tanjiro, who runs away from him. Giyu then runs after Zenitsu, yelling at him that he should dye his hair black.
 * Characters: Zenitsu, Sakonji, Sabito, Susamaru, Yahaba, Nezuko, Kanae, Kanao, Inosuke, Tamayo, Yushiro, Murata, Aoi, Tanjiro, Swamp Demon, Giyu

Valentine Edition
Kimetsu Academy: Valentine Edition (！！キメツ『バレンタイン』) - A special version of Kimetsu Academy featuring a Valentine theme.

Episode 1: Zenitsu is excited for the next Valentine's Day, which is still a half year away. He wants to get at least one chocolate from girls and starts preparing for it by pushing Tanjiro to accompany him asking teachers how to be popular with girls. They first go to Kyojuro, the History teacher who received a total of 28 chocolates. Kyojuro thinks it's because he speaks with deep breaths and his mouth wide open, such that the back of the class can hear him. Zenitsu considers it's bullshit and walks away. Tanjiro apologizes for Zenitsu's behavior and tells him he's wrong for behaving like that to a teacher, but Zenitsu shouts back loudly, so loud that the teachers in the backoffice can hear. Sanemi comments he wants to punish the student for shouting, and Kanae identifies the voice as Zenitsu. Kyojuro proudly confirms and praises Zenitsu for letting it all out.
 * Characters: Zenitsu, Tanjiro, Kyojuro, Sanemi, Kanae, Gyomei, Kyogai, Obanai

Episode 2: The next teacher they ask for advice is P.E. teacher Giyu, who received a total of 31 chocolates. Giyu says he never thought to be popular, but Zenitsu again calls it bullshit. Tanjiro shouts at Zenitsu for offending Giyu, saying that Giyu is already eating alone. Giyu in turn is offended by this comment and claims he's not alone. He also says that communicating is not necessarily talking, by staring at each other's eyes, one can understand each other's feelings. Zenitsu thinks this advice is a waste of his time and leaves. Tanjiro apologizes again for Zenitsu's behavior and follows him.
 * Characters: Giyu, Zenitsu, Tanjiro

Episode 3: Sanemi runs after Inosuke, trying to stop him from running in the halls and requesting him to remove the mask. They run past the Art Room, where Zenitsu is asking Tengen for advice. Tengen, who received a total of 51 chocolates, thinks from elementary school to high school the only thing a boy needs is fast legs. He claims that it's because the school fairy casts running magic on the female students. From college onwards, Tengen believes it's all about money. Tanjiro thinks it's a wrong way of thinking and that way you won't find true love. Tengen is flabbergasted hearing this and dismisses them. While they walk in the halls, Tanjiro tells Zenitsu that if he lives his life honestly and works hard, a girl will appreciate it. In the art room, Tengen gets upset about Tanjiro's words and throws a dynamite at a wall. The explosion can be heard in the teacher's backoffice. Giyu recognizes that it's Uzui again, and Kyojuro expresses that art is an explosion.
 * Characters: Inosuke, Sanemi, Tengen, Zenitsu, Tanjiro, Kanae, Gyomei, Kyogai, Obanai

Last Episode: Homeroom teacher Gyomei announces that a pervert has appeared and asks the students to take a good look at the handout. Tanjiro reads the description in the handout and recognizes all the traits the three teachers has given Zenitsu. He immediately knew it's Zenitsu, who is crying at the back of the classroom. On Valentine's Day, Tanjiro greets Zenitsu, who is miserable as he's mistaken as a pervert and believes he won't receive any chocolate, and he is also assigned morals duty on that day. Tanjiro gives him a heart-shaped chocolate bread made by Nezuko, who happily jumps in the air, as he is sure the chocolate is filled with Nezuko's love. Tanjiro also gives Inosuke, teacher Giyu and Urokodaki a chocolate bread.
 * Characters: Gyomei, Tanjiro, Zenitsu, Sakonji, Susamaru, Sabito, Inosuke, Giyu

Christmas Edition
Kimetsu Academy: Christmas Edition (！！キメツ『クリスマス』) - A special version of Kimetsu Academy featuring a Christmas theme.

Episode 1: Zenitsu invited Nezuko over to his Christmas party/Wedding filled with an enourmous double-barrel cake with small Zenitsu and Nezuko brides at the top, presents and fried turkey. He hears the doorbell ring and opens the door to see Nezuko along with Tanjiro, Inosuke and Giyu wearing a samurai armor with the kanji for Flame (炎) inscribed on its cuirass, tribal clothing and a black tuxedo with a blue tie with a white geisha mask, all worn respectively for the three males. This all deeply shocks Zenitsu as he never invited the others to the "party", even while it's shown that Zenitsu was never invited to other parties himself.
 * Characters: Zenitsu, Tanjiro, Inosuke, Giyu, Nezuko