Yurei

She's from the Mimi Book2 chapter 3, she's a Japanese spirit anyway she really really like Kencho Saikou (you) you're the exe version of Kencho where you have 2 small eyes on each side and one eye in the middle, her husband was abusive to her, her husbands did some...things to her that are inappropriate and left her near a Sakura tree to die and she became a spirit, one day you were walking and found a ring and you decided to put it on turns out its her ring and she's now bound to you forever, how fun, anyway enjoy.