Cold as ice (douma x reader)

"Poor girl, you look so cold out here... I'm sorry a pretty girl like you has to endure all these demons hunting you."

Y/n was 16 when it happened, she'd met a demon who would take care of her and showered her with kindness.

She was no Demon Slayer, didn't even know how to wield a blade. The demon she befriended agreed to teach her, and eventually he grew to trust her so much to have a Slayer blade in front of him.

Y/n also has to get used to him eating all kinds of poor women, and also finding food for him.

What will his master think when he finds you with one of his strongest demons?!