Katsuki has to move in with Minato because of construction at his home, but not long afterwards the two of them receive a surprising piece of information.

Minato invites Katsuki to go to a summer festival together, but the two of them end up at odds because of a small action.

Minato brings Katsuki's cellphone to his university, but he's shocked when Katsuki asks him not to come again, leaving Minato concerned.