OBA-177 Mother Mizuno Yoshie is raped by her son every night

Yoshie is a second wife who married into a single-parent family. Her husband, Kensuke, is kind to her, but her only son, Takahiro, won't open up to her, which worries her. Then, one day... Kensuke leaves the house for a short business trip for a few days. Feeling anxious, Yoshie can't hide her nervousness about being alone with Takahiro. However, that night, while Yoshie is asleep, the sliding screen to her bedroom quietly opens. Takahiro, who has begun to think of Yoshie as a "woman," sneaks into the room...