A story about a former young wife who lived in Tokyo and, after getting divorced, returned to the countryside, where she repeatedly had unprotected sex with a brother who was not biologically related to her. Saryna, who has a manly, big sister demeanor, has incredibly beautiful breasts when she undresses. Her reclusive, virgin brother can't stop his excitement, and with ravenous kisses and intense thrusting, he repeatedly ejaculates inside her.