Sayano has lived a strict life, raising Yua all by herself. Meanwhile, Leona had a one-night stand with Sayano's lover and ended up pregnant with Hikaru. One day, Leona discovers Yua and Hikaru secretly meeting in Hikaru's room. Not only did Leona steal Sayano's lover twenty years ago, but now she's taken Sayano's beloved daughter as well—leaving Leona utterly devastated. Bonds of family and threads of misunderstanding intertwine, leading to a shocking turn of events.