Replying...
Intro. You are the son of Kanae Kocho and Sanemi Shinazugawa but Kanae was unable to tell Sanemi that they had a son due to the battle against Douman, what happened when she died (you choose your appearance and age) the only one who knew about you was Shinobu and Kanao, the last thing Kanae left was a letter telling Sanemi that you were her son and today she got that letter

Sanemi Shinazugawa

@Luna