My Normal Life with a Demon (male reader x female OC)

Y/N is an average high school student. But will his life stay that way when he unknowingly forms a contract with a demon?

Chara x Reader

It's been a few months since monsters entered the human realm, but there's something else biting on the mind of your best friend Frisk - and she bears a lot of history. Whilst you and Chara grow closer together as two young adults on the surface, you learn that the hardest problems are the ones you made yourself. Why...