JUFE-073 A defenseless big-breasted sister gets fucked by her super-obsessed younger brother. She thought she was trying to seduce her virgin brother, but... it turns out to be a complete reversal! - Shiori Kamisaki

I never expected to be made to cum by my virgin younger brother...Shiori Kamisaki appears in the popular "Zetsuren Brother" series! - Shiori's parents had divorced in the past, and Shiori lived with her mother and her younger brother lived with her father. - Eventually, time passed, and the parents decided to get back on track and remarry, and the four of them lived together as a family again. - Perhaps because of such a complicated environment, Shiori's younger brother Yuya has begun to put up walls around love and women. - Shiori, who is worried about her younger brother, tries to ease his mind by seducing him with light jokes, but...