Succubus to Hajimeru Shinken Kousai

Yoshiki Tsuyoshi is the captain of Seizai High Karate Club which prohibits impure relationships. Akuno (a succubus) begins to tempt Yoshiki after he saved from her from a molester. How far can he go in the face of this clumsy but far from innocent girl? How far can he go in his pure, single-minded love?