Before she grew up, Ichika (Renka Iwamoto) had always wanted to solve the mystery of the tape at home. She discovered that Hikaru (Koki Tanaka) was her twin brother.After experiencing confusion and trouble, Ichika confessed everything to Hikaru: “I'm sorry”, and Hikari responded: “Even so, I still like Ichika” and hugged her.

However, why did he become the son of Sayoko (Ayame Mizusaki) when he was supposed to be the child of Reitaro (Terumosuke Takesai) and Kazumi (Moemi Katayama)?In order to find out the reason, the two went to Ichika's home.

On the other hand, Prince Taro was asked by Sayoko to have a serious relationship, saying that he wanted to form a real family.Reitaro learned that Sayako had lost hope due to her ex-husband's tragic domestic violence and had made irreparable mistakes. In addition to being shocked, he also developed symptoms of hyperventilation. He went to Kazumi's residence.There, Reitaro saw a family photo of four people hanging in the living room. Xianggui was in the photo. Kazumi smiled and said: “Xianggui will be back soon”.

Reitaro, who fell into a state of panic, finally proposed to Kazumi: “Let's get a divorce”.Kazumi, who once put tape on her family to keep her family together before Ichika grew up, what was her answer?——

On Ichika's 18th birthday, the incredible truth surfaced. Reitaro and Xianggui were no longer family members.