As summer break comes to an end, Nishikata is stoked to try out his newest pranks and finally outdo his classmate Takagi once and for all. Despite his losing streak, he is slowly getting to know the unrelenting workings of her crafty mind. However, he soon realizes that Takagi's motivations behind her teasing may not be what he initially assumed. One thing is certain, though: each fun-filled day of strategizing and competing brings the two closer than ever.

Having a friend that knows you inside out should be a good thing, but in Nishikata's case, the opposite is true. His classmate Takagi loves to tease him on a daily basis, and she uses her extensive knowledge of his behavior to predict exactly how he will react to her teasing, making it nearly impossible for Nishikata to ever make a successful comeback. Despite this, Nishikata vows to someday give Takagi a taste of her own medicine by making her blush out of embarrassment from his teasing.

Takagi and Nishikata's final summer in junior high is about to begin, and it's already off to a heartwarming start! When the pair find an abandoned kitten, they decide to work together and take care of their adorable new companion until they can locate its missing mother. (Source: Sentai Filmworks)

Former ace runner of Sendai Josei High School, Kakeru Kurahara is chased away from a convenience store for shoplifting. Shaking off his pursuer, he runs into Haiji Kiyose, another student from his university. Haiji is impressed by Kakeru's agility and persuades him to live in Chikusei-sou, the run-down apartment where Haiji resides along with eight other students. Having lost his entire apartment deposit at a mahjong parlor, Kakeru accepts the offer reluctantly. However, Haiji reveals a secret during Kakeru's welcoming party: the apartment is actually the dormitory of the Kansei University Track Club. He unveils his ultimate goal of participating in the Hakone Ekiden—one of the most prominent university marathon relay races in Japan. Unfortunately, all the residents apart from Haiji and Kakeru are complete running novices. Worse still, none of the inhabitants are even remotely interested in being involved with Haiji's ridiculous plan! With only months before the deadline, will the fourth-year student be able to convince them otherwise and realize his elusive dream of running in the Hakone Ekiden?