[3][4] Four best friends — pure-hearted Natsuki Hashiba, ladies' man Tomoya Matsunaga, otaku Tsuyoshi Naoe, and sadistic Keiichi Katakura — approach their second year of high school.

During spring, Natsuki works up the courage to talk to Anna Kobayakawa, who lends him her hand towel after he falls into a puddle.

In the summer, Natsuki, Tomoya, and Keiichi fail their exams and seek help from Tsuyoshi and his girlfriend Yukiko Asai, to which they also invite Anna.

Anna becomes confused when she sees that Natsuki's classmate, Chiba, is close to him, and she is later saved from unwanted advances from another boy when Keiichi pretends to be her boyfriend.

Masaomi conveys this to Mari, and she realizes how genuine his feelings are after Tomoya confirms he has deleted phone numbers from other girls.

As the boys become third year students with the arrival of spring, Anna overhears Natsuki helping Chiba rehearse for their play at the cultural festival, misinterpreting their conversation as a love confession.

[7] It stars Generations from Exile Tribe member Reo Sano, Taishi Nakagawa, Mahiro Takasugi, and Ryusei Yokohama.

[5] The staff borrowed a traditional house built 100 years ago to use as Tsuyoshi's room, filling it with anime and manga memorabilia including The Girl Who Leapt Through Time, Summer Wars, and the Rebuild of Evangelion film series.