Five-year-old orphan Lumi takes one look at the terrifying Demon King and decides he needs a daughter. Soon, his monster-filled castle is tackling its scariest challenge yet: raising a child. But when a human knight links Malachar to the fire that destroyed Lumi’s village, their unlikely family becomes a mystery with a very personal stake. Everyone sees a monster with something to hide. Lumi sees her daddy. What really happened the night he found her?