Misako, approaching her 50th birthday, was considering remarriage as she prepared to embark on a new chapter in life. Her partner was kind, financially stable, and seemed perfect for her. However, she grew concerned about her son's behavior. Unable to accept his mother's remarriage, he was consumed by jealousy and anxiety. One night, as he reached out to touch himself while thinking of her, Misako witnessed the act and realized the depth of his feelings, causing her to wonder how their relationship might change. From that moment, their bond took a sudden, unexpected turn—ushering in a new beginning between them.