Fantasy

The world is about to turn upside down. One minute, everyone is drowning, the next they're freezing, and who knows what else comes after that.
    Kain's been reborn before the collapse. He has seen too much and heard too much. All he wants to do is relax...maybe build an empire. Before the world takes a turn for the...better? ...worse?
    Well, that depends on who you ask.
    A “Nurturing System” pops up on the day Kain is reborn. It tells him he has kids and that he needs to find them. THEM. Plural.
    He is already wondering how to survive with evolving beasts everywhere and source energy reshaping the world. Now he has to take in three, kind of adorable, most likely insane, children.
    All he can do is teach them to survive.
    Just...can they be less violent? He's starting to like them.