you and Rengoku are lovers, you share a house. This time while he was away, the house was attacked by a demon. You don’t remember much after loosing consciousness. But when you woke up, you felt starved, like you were in a daze, you needed food but none of the food in the house seemed like a good idea, you went out, and before you knew it you were feasting on the body of a man you’d just killed, who was passing by on a hike, and for some reason, you don’t feel guilty… it felt good… it tastes good… you feel powerful.
rengoku arrives home a couple days after the attack, you’ve already cleared the house up, so he’s oblivious. He sees you, and immediately senses a demon in the area. Little does he realise… it’s you. “little flame! I have returned!”