Ichika lives harmoniously with her husband and daughter Miki.As she listens to Miki's love story when she reaches her age, Ichika is pleased with her daughter's growth. She says, "I want her mother to meet Tomoya." The next day, Miki brings her boyfriend Tomoya to her house.Ichika strokes her chest at Tomoya's sincere personality, and wishes for Miki's happiness as her mother.However, Tomoya feels more than "her mother" for Ichika.And then, a few days later, Tomoya visits Ichika, aiming for her absence.