searching for a manga

there's a girl in an orphanage who never got to be adopted until she's too old to keep being in the orphanage. i don't remember her age but she looked like a kid, when a demon? kidnapped her?? i think?? after she prayed on a rooftop or something. it's been a really long time, i don't remember much. but i do remember that it's... a little... p*do-ish? cus the ml is a demon and the fl is a little girl. idk i suddenly thought about it and i wanted to read it again cus im curious