Miho Kanazawa

The body of a male has been discovered, strangled to death, his face pulverized beyond recognition and fingers burned to a crisp. Assigned to the case are local precinct detective, Kaoru Utsumi, and her ex"colleague from headquarters, Shunpei Kusanagi. It turns out that the neighbor of the victim's ex"wife is a college alumnus of brilliant physicist, Manabu Yukawa, aka "Detective Galileo."He is Tetsuya Ishigami, a high school math teacher whom Yukawa personally considers a true genius. (AsianMediaWiki)

In this seventh installment of the Ju-on franchise, a school teacher visits the home of a boy who's been absent from school for a long period of time, unaware of the horrific tragedy which occurred in the boy's household many years ago. (imdb)

Koharu holds down a public sector job and does it well. Then disaster strikes. Her family and home are stricken. She is personally affected when her man lusts after other women including a co-worker of his. A white knight appears who is willing to be with her, love her and marry her. What happens next is no Cinderella story however (aghaemi, IMDb).