Natsuki and Sôichirô bump into each other 3 times: in a hotel in Hokkaidô where he saves her from an embarrassing situation. At a marriage introduction where he cheers her up. At his sister's house where she lives which he moves into.
Nazuna shows up to return Sôichirô's coat, and thank him. Nazuna and Sô-chan go on a date. Natsuki bumps into Kuga her former tutor, now a doctor. Natsuki waits for his call in Sô-chan's room. Sô-chan wonders who she is waiting for.
Kuga lets slip he has a daughter, and is divorced. He buys Natsuki a dolphin which breaks when she fights with Fuyumi. Haruko sends the wrong script. Natsuki and Sô-chan help her, and grow closer. Nazuna feels jealous of Natsuki.
Everyone panics when it looks like Fuyumi tried to kill herself. Kuga heals her. Sô-chan says he'd break off with someone he couldn't make happy. Fuyumi kisses Kuga. Natsuki calls Sô-chan to say she is with Kuga, and won't be coming home.
Sôichirô loses his job. He tells Natsuki, and the two go out drinking. Natsuki tells Haruko, and Haruko tells Nazuna. Nazuna calls him to ask why he didn't tell her. The next morning she shows up outside his work with breakfast.