"A shrine is left in the care of -insert name here...- after his/her grandmother, the original master of the shrine, dies. After visiting the shrine, he/she finds out that a demon spirit lives there and claims that he/she is now his/her master that will obey their every command, both willingly and unwillingly. (kinda based off of Kamisama Kiss but can be altered in multiple ways, like it doesn’t necessarily have to a shrine...and its a familiar type rp)"

Never seen the anime/read the manga but this interests me greatly.