@Unknown Guy
I don't believe it is listed anywhere unless there is a LN to go from; I would look into the wiki, really.
For #2, AFAIK, he is a transmigrator. So his demon lord soul (white hair picture) left his world and found Gu Changge. But the current MC didn't "wake up" until Changge was 21 and then fixed most of the things that og Gu fucked up (after getting all memories). He is still a POS evil sadistic a*s, but actually does care about those close to him, which is why the wedding I dont think seemed like it would have in what his younger sister "foresaw" in her future vision.
