A wife, Karin, who entertains her subordinate, Kurosu, who her husband brought home. Coincidentally, the two were seniors and juniors when they were students, and Kurosu fell in love with Karin's fragile beauty when they met for the first time in a while. That night, Kurosu peeks at her Karin being violently entwined with her husband. Kurosu, who wanted to make her his own because Karin's stupidity was stuck in her head, grabbed her weakness and toyed with her body. Furthermore, she tries to control her body and mind with her humiliating act so that Karin can never leave her for the rest of her life.
