STARS-434 A personal instructor named Furukawa Iori tempts the husband of a newlywed couple with her proud, beautiful ass and seeks middle-out sex for making children.

Iori, the personal trainer who is trending on SNS. Now she's a superstar in high demand by the media, but even so, she can't find time for a boyfriend and is frustrated with unmet desires. Then she meets a certain newlywed couple. Iori becomes drawn to the husband, a good-natured man, and repeatedly tempts him with her proud beautiful ass during lessons, dragging him into the pleasure of internal ejaculation. A drama of love and jealousy-driven infidelity.