Mahiru, a college student with a mother remarried and started a new life with her father -in -law. Mahiru once had a selfless heart to his father -in -law, but one day everything changed completely. I witnessed my father -in -law devouring Mahiru's underwear from the washing machine. But I don't want to see my mother sad. Since that day, Mahiru was far from her father -in -law, but her grandmother was sick and her mother had to return home for a while. And when Mahiru tried to escape to a friend's house, her cunning and lustful father -in -law had stopped.