https://i.imgur.com/RwgW178.png
This screenshot and this description from a guy in a chat is all ive got to go on.

Guy: uh
Guy: i can't remember the title
Guy: anyway that was from the credits page
Guy: the manga's about a guy who can see this ghost, and because the ghost wants more people to see her, she begins to prep a harem for him so she can talk to his kids

If you recognize this please tell me, thanks in advance 🙂

Aha I got help from another dude and now I have it!
Leaving it here incase anyone else became interested.
https://www.mangaupdates.com/series.html?id=146237