KSBJ-357 Mika Sumikawa, the mother who sacrificed her body to help her son pass the entrance exam

Mika, a married woman who desperately wants her child to attend a private school, invites a man from the school into her home, hoping to get a recommendation. "Your wife's efforts will determine whether your child gets in or not. You understand that, don't you?" Mika reluctantly gives her body to the man for the sake of her child's entrance exam, but she is gradually engulfed in pleasure...