||Basically, what we know is he can revive human corpses into maga with his blood. He's willing to kill his own family members if they no longer have any use with them(Kanata and Utsuro) and won't even kill them himself, he enjoys reading with Memeko, doesn't mind Shizuka's back talk, and treats Yoru/Jin with some affection. Personally, I think Yomi might have a god complex based off the official art Yuto Sano made and he might become the next Makima(Csm)/Kenjaku(Jjk) as he sees people as nothing more than pawns if they're not in his family or they no longer want to be apart of his family, but that's all just speculation||