Synopsis
Sayoko Miyamura is a model student, popular among her classmates, and frequently the focal point in social situations. One night, while walking home alone, Eto—who has feelings for her—sees her being chased by a group of men. Though he initially hesitates to step in, he finds the courage to grab her arm and rescue her from harm. But when he looks more closely, he realizes this version of Sayoko is nothing like the one he knows at school. This alternate persona, called "Yoko," has a defiant attitude, a crude tongue, and an uncontrollable sexual appetite.