A year has passed since Mitsuo filed divorce papers to end his marriage with Yuka, 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 then joins Mitsuo and Yuka. Ryo tells them that Akari 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.