Help please

It's shouji
It's about male teacher and female student relation
Girl is so poor and her family is in a lot of money problems and she had to stop going to school because of money problems and the guy is her teacher on whom she had crush .....he is gentle and good to her so she says her problems to him ....he is actually son of some big shot bussiness man he solves her money problems so she and her family decides to return the favour by making her live with him and do his house chaoses ......but after she enters his house he become a cold hearted sadist and so
This manga started recently so please can any give me its title