Kanata, a volleyball player who's constantly annoyed by her brother who ditches chores to hang out with friends, finds herself unexpectedly aroused when one of his buddies starts hitting on her ass. To make matters worse, her brother also starts manhandling her ass and body, pushing Kanata's frustration to its limit. Seizing the opportunity, she rushes back to her brother's place and tries to take revenge with a reverse cowgirl position, pounding away with her big ass!