[Reducing Mosaic]VOSS-005 Knowing that my incredibly beautiful sister-in-law was sexually frustrated, I deliberately jerked off in front of her to test her reaction. As a result, she stared greedily at my dick and inserted it herself. Kanako Iioka

Shogo has decided to live with his brother and his wife for a while to prepare for university entrance exams. Kanako, his sister-in-law, hadn't seen him in a long time, but Kanako, who was beautiful and homely, was Shogo's ideal woman. One day, Shogo witnesses the activities of his brother and his wife at night. Then, it seems that Kanako is dissatisfied with sex with her brother... Knowing that, Shogo comes up with a strategy...