@Xeiyenreishahaha well i would figure Hayato doesnt exactly have the greatest relationship you know being pulled away from his twin sister all the time to learn about dueling but i havent established his relationship with his parents yet. heck even i dont know his relationship with his parents
I see, well Shinrei wishes people would forget that he dueled on the World Circuit. It is not one of his most memorable moments and it is a shadow of his past he wants to act like never existed. That's easier said than done to actually wipe the slate clean when your name has been out there where almost everyone knows about you now.
He is very protective of his twin sister Tsukiko and wasn't entirely happy that they separated the two. But due to the rules, he is an experienced duelist that has been on the World Circuit so he is not allowed to be grouped with the first years. His sister though is grouped with the first years being placed in the Earth Dorm. Shinrei has to stay in the Light Dorm, but you can be sure that he will be watching over his sister when he gets the chance. She is very important to him. More so than his own life.