A mother who sacrificed her body to accompany her son to university so he could pass the entrance exam: Hikari KSBJ-437

Hikari, a married woman, desperately wants her child to attend a private school. In an attempt to obtain a recommendation letter, she invites a school official into her home. The official tells her, "Whether our child passes depends on how hard you work, ma'am. You understand?" For the sake of her child's entrance exam, Hikari feels she has no choice but to give herself to him, but gradually, she is consumed by pleasure…