SGKI-101B Will the boys find out? The flat-chested sisters end up having raw intimacy and are left teary-eyed and overwhelmed. Even though they tried to endure it when their sensitive spots were touched…

Twin sisters Yuna and Hinano, members of a traveling performing troupe, face an unexpected transfer destination: an all-boys school!? To compete for the troupe’s top spotlight position, they go undercover in disguise as boys. But what awaits them is a relentless series of extreme trials! They are ordered by male students to do humiliating tasks and pressured into exposing themselves… Even though the flat-chested sisters are pretending to be boys! They are quickly exposed and put in a dangerous situation. If they’re found out, it’s over… yet the tension becomes overwhelming, bringing them to tears and pushing them to the brink! You don’t have one, do you!? No guy would have nipples that sensitive! They’ve reached their limit!! The flat-chested sisters are in a major crisis!!!