Yui who married her childhood friend Yuma. My father-in-law, Toru, has known love since he was little and always helped me when I was in trouble. One day when I met Toru, Yui came to this town where she was born and raised. My father-in-law's house hasn't changed since long ago. Yui found out that Yuma was having an affair and ran out of the house. Then, he pushed down his father-in-law who hesitated, saying, "Don't tell Yuma-san that you came here," to his father-in-law, who had been secretly favoring him for a long time.