Tantei Gakuen Q

My father abandoned me and took away my mother.I experienced q lot of things while growing up but it never stops me to become a successful person because I am hoping that one day he will give my mother back. Until that day came a letter from my father telling me to be ready because in two months I will marry a guy he wanted me to in exchange of being with my mother. I just wish that this man will protect and love me despite my past.