The mystery of Kazumi (Moemi Katayama) cutting out “family photos” was finally solved by Ichika (Renka Iwamoto), but the truth is so sad.

In order to achieve family reunion, Ichika and Hikaru (Tanaka Kouki) conducted a “family puzzle”.However, Ichika, who knew the answer, was hesitant to tell Hikari.Hikari, who doesn't know the truth, wants to help Ichika and expresses her love emotionally, but Ichika hides her true feelings with tears in her eyes and wants to push Hikaru away.

Ichika said "I'm going to give up on solving the puzzle" and then fell into depression alone.At this time, Aguang sent a message saying that he wanted to continue to solve the mystery of “familymystery”——

On the other hand, Kotonoha (Nami Mori) became angry because her plan to take away the light failed. She pretended to be a friend of Ichika and approached Ichika's father Reitaro (Takezai Terunosuke).

At this time, Reitaro accepted the request to date Sayoko (Misaki Ayame).Although both parties understand that both parties have families and that this unethical love will create estrangement in the family, Lingtaro, who has been lonely for a long time, still accepts Sayoko's confession.Sayako then talked about her painful past with her divorced ex-husband——

Ichika and Hikaru, Reitaro and Sayako.What will be the direction of the two intertwined pairs of children and their parents' respective love affairs, as well as the collapse of the family?