``I wish the teacher was my father. He probably wouldn't be as violent as my previous father.'' Mina looks at her beloved daughter Lala, who is happily chatting with Sugiura, the piano teacher. Her husband's domestic violence caused her divorce, and it was very painful for her beloved daughter. Calm days finally arrived after her divorce. However, her mother and daughter were not yet aware of the great madness that Sugiura was hiding.