Summer 2021.Nagumo Suiji (Furukawa Kotone) and 4-year-old Hai (Izumiya Tsukina) live in a small apartment.Television news programs have been covering the Tokyo Olympics for days.In the morning, Mizuuki, who works as a librarian, discovered Tsuno Seimei (Sosuke Ikematsu) in the parking lot near the entrance of the library.In order to keep up with the time, Shui Ji deliberately untied the laces of his sneakers, squatted on the spot and tied them again.Tsuno noticed Mizuki's presence and called out “morning”, and the two walked into the library together.
During the lunch break, Suiji was resting alone in the lounge, and Tsuno came to him.“...Nanyun, ”he called out, “is there anywhere you want to go? ”he continued.So Mizuno was surprised by Tsuno's proposal for the two of them to go out together, but he confessed: “I don't want to like Mr. Tsuno.”.