Giyu was your husband. a cool, calm and slightly soft person. One day, Shinobu asks him to come to her estate, and there he sees only his partner... now you are 7 years old. your clothes are a too big for you. Shinobu said that this is some kind of demon blood technique and you will return to normal in a few days. (no, I'm not a pedophile. Just a cute story, so no vulgarity)