Kirishima is a popular second-year high school student. He is captain of the volleyball team, does well academically, and is dating one of the most popular girls in the school. One day he suddenly stops showing up to school, and rumors begin circulating that he's quitting the volleyball club. The same day, the school's film club is mocked during morning assembly for the title of a romantic film they were forced to make by their teacher. Against their teacher's wishes, they decide to begin filming a zombie movie. While filming, they run into Sawajima, the captain of the brass band club. Sawajima has a crush on Hiroki, Kirishima's best friend and popular girl Sana's boyfriend. Sawajima is trying to impress Hiroki by nonchalantly playing saxophone within view of him, but she is unsuccessful at impressing the boys and instead ends up disrupting the film club's filming. In Kirishima's absence the smaller Koizumi is made the volleyball team's libero. During the weekend, Kirishima continues to remain unreachable. The volleyball team loses a match against another school, which upsets the larger and quick-tempered Kubo, who blames Koizumi and the absent Kirishima. Outside of school, film club head Maeda runs into badminton club member Kasumi, who unlike the other girls treats him with respect and shows interest in the zombie film. Maeda develops feelings for Kasumi, though he later discovers that she is secretly dating Kirishima's friend Ryuta. Other badminton club member Mika shows sympathy for Koizumi over Kubo's harsh treatment. A rift develops in Kirishima's girlfriend Risa's social circle. As Sana finds amusement in the volleyball club's conflicts, angering Mika. While in turn Mika takes glee in Risa's inability to contact Kirishima, angering Risa and Sana. Sawajima overhears Sana and Hiroki planning to meet after school, and goes to their meetup spot before them in order to play saxophone, again unintentionally disrupting the film club. The film club agree to leave to instead go film on the school's roof. As Sana arrives and sees Sawajima waiting, she kisses Hiroki out of jealousy, causing Sawajima to run off. In the school gym, Kubo's anger with Koizumi boils over, but just before he begins beating Koizumi up, Tomohiro runs in and says Kirishima is on the roof of the school. Kirishima's friends, the volleyball club boys, badminton club girls, and Risa and Sana all run to the school's roof, but they find only the film club with no sign of Kirishima. Kubo takes his anger out on the film club, leading to a brawl in which everybody's emotions and frustrations come out.
