Tsukareta Kanojo Iwaku, Katte ni Karada ga Ore ni Amaechau Rashii

Wataru has a unique constitution that makes him especially attractive to spirits. One day, a beautiful spirit medium named Rin appears before him and attempts to exorcise a cursed doll that has been attached to Wataru. However, the attempt backfires, and she ends up being possessed instead—

“T-This isn’t my will!”

And somehow, she starts clinging to him and acting unusually affectionate toward him!?