Okay, so hear me out. Ive been thinking thIs for a while now, but, what if all these worlds that he is lIving in were part of his past lives? I mean from the previous story i got that the weak little school boy that he played as was actually the cause of all the conflict and heartbreak between the brothers because of his manipulation or sOmething. And in this one i feel like Bi he was actually Yunyu. That would explain why his ice powers changed to that of lightning and why he had such good control over it. Maybe he has to repent for the distruction and pain hes caused all these people in his past worlds/lives.???