Clad in desert pink and the size of a mere child, the infamous "Pink Devil" mercilessly hunts down other players in the firearm-centered world of the virtual reality game Gun Gale Online. But in real life, this feared player killer is not quite who anyone would expect. A shy university student in Tokyo, Karen Kohiruimaki stands in stark contrast to her in-game avatar—in fact, she happens to stand above everyone else too, much to her dismay. Towering above all the people around her, Karen's insecurities over her height reach the point where she turns to the virtual world for an escape. Starting game after game in hopes of manifesting as a cute, short character, she finally obtains her ideal self in the world of Gun Gale Online. Overjoyed by her new persona, she pours her time into the game as LLENN, garnering her reputation as the legendary player killer. However, when one of LLENN's targets gets the best of her, she ends up meeting Pitohui, a skilled yet eccentric woman. Quickly becoming friends with Karen, Pitohui insists that LLENN participates in Squad Jam, a battle royale that pits teams against one another, fighting until only one remains. Thrust into the heated competition, LLENN must fight with all her wit and will if she hopes to shoot her way to the top.

Due to his mother and sister, who both love professional wrestling, Kinjirou Sakamachi developed a resilient body that could take hard punches, aggressive kicks, and even deadly vehicle bumps, in order to survive their various grappling positions and locks. However, he also developed gynophobia, an abnormal fear of women. With just one touch from a girl, his nose bleeds uncontrollably, he sweats excessively, and in rare cases, faints abruptly. His life changes for the worse because of a fated meeting in the restroom. While trying to escape from a girl, he discovers that the most popular student in their school, Subaru Konoe—the butler of the headmaster’s daughter, Kanade Suzutsuki—is actually female! Surprised, Subaru violently assaults Kinjirou, dealing significant damage and knocking him unconscious. When he comes to, he meets Kanade. In exchange for his silence, she promises to help cure his phobia.

Tetsuo Tosu never expected his daughter, Reika, to be a victim of domestic violence. Suspecting that her yakuza boyfriend, Nobuto Matori, is the perpetrator, Tetsuo decides to investigate him and his associates. But as he searches for evidence at Reika's apartment, the father learns that his daughter is not the first victim and that a worse fate awaits her. When he is discovered by Nobuto, Tetsuo ends up killing him in the ensuing fight. Assisted by his wife, Tetsuo hides the body in fear of retaliation from the yakuza. To add to the misfortune of the Tosu family, Nobuto happens to be the son of the mafia's head. Considered to be prime suspects behind Nobuto's disappearance, Tetsuo and his wife will have to deploy all their ingenuity to protect their daughter from the yakuza and their ruthless investigation.

Once a prize-winning violin prodigy, Hajime gave up on music after his father, professional violinist Ryuuji Aono, was involved in a scandal that led the media to harass his family. Now living alone with his mother and entering his final year of middle school, Hajime struggles to find a new career path. However, the sound of his classmate Ritsuko Akine playing the violin inspires Hajime to dream of a musical career once more. With the help of Ritsuko, Hajime prepares to take the entrance exam for the prestigious Umimaku High School. But if he wishes to join Umimaku's orchestra, Hajime must overcome his past trauma and open himself up to new musical horizons.