One day, Shunsuke is falsely arrested for train molestation. He tries to prove his innocence, but his guilt is finally established. When he finishes his prison term, he soon decides to take revenge on the girls who told the police he was a train molester.... Like this, his revenge life starts.... But one day, when he does train molestation in the train, he is witnessed by the police.

However, a girl saves him just when he is about to get arrested. The girl is actually his younger sister.... Yes, his one and only family member....