- A year has passed since Mitsuo (Eita) filed divorce papers to end his marriage with Yuka (Machiko Ono), but they still live together. Mitsuo is now thinking about remarrying Yuka. On December 30, Mitsuo and Yuka go camping. Mitsuo works hard to prepare everything, while Yuka just drinks beers. Ryo (Gou Ayano) then joins Mitsuo and Yuka.
Ryo tells them that Akari (Yoko Maki) had a safe delivery in Aomori and she will be back tomorrow. These two couples look fine, but a new crisis is soon to come about.