My beloved mother remarries. Yusuke, a son who can not hide his upset from the suddenly appearing remarriage partner. Yusuke goes to see his remarriage partner with mixed feelings, but he realizes his desire for exclusivity for his mother. Jealousy of being taken by a stranger. A feeling of loss leaving the house where I was born and raised, filled with fun memories. I want my mother who raised me with just one woman to be happy ... but I don't want to give it to anyone. Yusuke, who is shaken by conflicting thoughts, eventually begins to see her mother as a woman.