![Tù Nhân Bí Ẩn](https://img.ophim1.com/uploads/movies/tu-nhan-bi-an-thumb.jpg)
The story follows Tо̄suke Rokudо̄, a timid high school boy who gets bullied by delinquents. He receives a scroll from his late grandfather, leaving a mark on his forehead. The mark’s effect causes a delinquent girl named Ranna Himawari to fall in love with him.