Two years after his school trip, Kakeru Kurosawa decides to visit Osaka again with some of his former classmates. Among them are Pizza-tan, a person who is often bullied; Keiji Nagaoka, an otaku who loves anime and manga; Magister Takigawa, a bookworm who enjoys reading; and Aya Kitahara, the main source of Kurosawas troubles during their time in school. The trip starts off on a bad note when Kurosawa's girlfriend scolds him for not inviting her along with the group. There are also tensions between Keiji and Takigawa, as well as an uncomfortable Ferris wheel ride shared by Kitahara and Pizza-tan. Despite their efforts to reconnect, the strains in their relationships threaten to ruin their meeting entirely.