@gearsky I know of 2 other series with ghosts. My roommates isn't from this world and Sadako to Deatte Shimau Hanashi. Also Mieurko-san also had a perverted ghost once.
@gearsky Here you go. https://mangadex.org/title/48996/my-roommate-isn-t-from-this-world
https://mangadex.org/title/31792/mieruko-chan https://mangadex.org/title/47333/sadako-to-deatte-shimau-hanashi