i need help its bugging the hell out of me and i need to read it again! it was about a girl who comes across a a boy who turns out to be a demon who had lent one of his 3 hearts to her on request from her dieing mother. she moves into an apartment with the demon boy i believe it had the words maou or maoh in the title thanks for any help given!!

Chikyuu Kanrinin It was actually just recently finished by A Willful Muse

I am a breath of insanity in a world of chaos.

Me: Performing Random Acts of Klutziness for over 30 years.

If you just search "Maou" in the manga search engine on the side; it pops up. (: