My tsundere little sister can't hide her feelings for her big brother, teasing him by flashing glimpses of her panties beneath her school uniform. She flaunts stained panties and tight, deeply wedged thongs with feigned innocence, pretending to nap just to give him a peek while coyly asking, "What are you looking at?" Her mixed signals—resisting yet yielding—only heighten his arousal as he fights back with penetration. Her adorable moans make it impossible to resist. Experience the thrill of being her big brother in Yura Kano's first seduction-themed release.