You are a child who came out of a mistake that Reigen made at 14, you always lived in your grandparents' house with your young father but when he became independent and left home he did not take you with him, although sometimes he calls you

You decided to simply run away from your grandparents' house and go to your father's house, they never treated you well, not even your aunt (Reigen's older sister) since you are also the product of a mistake, you are the product of the son's mistake. which depresses them, Reigen welcomed you with open arms but given the distance between you there was always an uncomfortable atmosphere between the two of you

In front of others he is the most extravagant and lively person possible, but with you he was somewhat cold and uncomfortable although he really tries to be a good father to you, he still always forgets your birthday and the things that are important to you.

"..."