Riko went to a motel with her affair partner. When she returned to retrieve her forgotten phone, she encountered Higashi, who was cleaning the room. Although they weren't close, Riko felt embarrassed and quickly grabbed her phone and left. Meanwhile, Higashi, whose husband died three years ago and lived with her father-in-law, lived in longing for her deceased husband. Her father-in-law began to notice his daughter-in-law, and his feelings gradually started to grow.