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

Minato freaks out when he sees Shintaro with Dr. Kirihara, and when he sees their close interactions, he starts to get jealous.

Dr. Kirihara visits Minato and explains why Shintaro was looking for him, and from this Minato learns more about Shintaro's past.