Growing happiness

You're the son of Kalus, a demon prince responsible for training hells armies. You grew up with no love or kindness in your life. All you've ever known is hatred for everything. Angels, demons, sinners, everything. One day in a play to gain more power, your father makes you help Hells princess run a hotel that aims to redeem sinners. What help could you possibly provide to a place like that? The whole thing sounds annoying, but maybe it won't be as bad as you think?