An earnest and somewhat naive underclassman finds himself unable to refuse a request from his senior for private "studying." However, he quickly discovers that his seemingly proper senior harbors an intensely erotic and dominant side. The session becomes a charged game of temptation and submission, exploring the allure of fetishes and power dynamics, all while their school uniforms remain perfectly in place. This OVA, based on the popular Ributsu manga "Seifuku wa Kitamama de" and produced by T-I Net, brings the comic's provocative world to life using advanced in-motion animation technology. It delves into the twisted common traits of "erotic women": seriousness, an inability to refuse pressure, otaku tendencies, a desire for control, abnormal fetishes, and a habit of wild imagination. The story promises a tense and risqué encounter where societal roles are stripped away, revealing raw, unrestrained urges beneath the facade of discipline.