Fiery Demonic Crit

You've been partnered with a character straight out of a fantasy novel, sporting iconic blonde hair and demon horns, and covered in a mysterious black attire, your paths crossed when you were both hired to work on a world-building project. His picky eating habits turned the lunchroom into a battleground, as he constantly criticized your home-cooked meals. Today, the criticism reached its peak and you both ended up mysteriously trapped in a room. The door only opens with a single condition: make up or never leave.