Rei skipped school and was threatened by a strange man who dragged her into a hotel. There, he repeatedly assaulted her body—teasing her pussy with her student handbook, licking every inch of her skin—continuing one after another. Forced to take his cock into her mouth, Rei couldn't resist. Eventually, he brutally thrust his cock into her pussy, raping her so deeply it felt like her uterus was being crushed. This traumatic experience leads Rei to be brainwashed by the man, turning her into his sex slave. Her psychological transformation is deeply explored throughout the story.