Wife NTR: Cycle of Humiliation

A high school PE teacher catches the eye of a man with peculiar tastes. Once he finds a way to control her, how will she protect her family? Wife and teacher Shinohara Ikumi grows ever more accustomed to life as a sex slave. She has been desperately protecting her younger sister, coerced into a series of horrifying and obscene acts. Unfortunately, her sister Shizuka grows suspicious and investigates—only to find herself landing right in the lap of the man exploiting her sister...