JK Yurika, a member of the tennis club. She doesn't stand out as a typical beautiful girl, but her simple and delicate charm has made her a hidden favorite among the boys in class. One day, she is forcefully taken to a man's room and, still in her sailor uniform, tormented by a group of sinister adult men. Paralyzed by fear and disgust, she finds herself unable to move—but when they look inside her panties, they discover she's dripping wet, breathlessly aroused. Usually a serious girl devoted to tennis, Yurika gradually loses her senses under the relentless assault of their foul, erect dicks, transforming into an insatiable, lustful flesh hole.