Aika Kurohata has spent her entire life under the shadow of the Kurohata-gumi, one of the most feared yakuza families in Japan. Trained in combat, fluent in five languages, and raised to be the perfect heir, she's anything but normal. But all she wants is a chance to experience the one thing she's never had-a regular high school life.
Determined to blend in, Aika insists on attending a local high school, armed with nothing but her (questionable) knowledge of teenage life from movies. However, "normal" proves to be much harder than expected.