Pyromaniac Reader X Grillby
The reader is a patient at a mental hospital who loves fire and just can't stop burning objects, animals, people and even yourself. You just can't stop as your mind is dying, losing your sanity. You were abandoned when you are just a baby. While no one came to visit you made you alone. Unable to control nor feel properly as a human being. Fire is the only thing you seem to ever considered as a friend in the situation you're in. Until you met the fire monster things have change completely.