Slave colored female teacher 7

High school teacher Minako (Ashina)'s father was tricked into committing suicide by a man from the Mochizuki group, and her sister was sold into the sex trade. In a fit of rage, she stabbed a man from the Mochizuki group and was sentenced to prison. After being released from prison, he tries to live a happy life, but is kidnapped and imprisoned as revenge by the Mochizuki group.