Rika lived alone in her apartment. When she accidentally punched a hole in the wall, she found her strict, iron-masked teacher Kurogane-sensei on the other side! To keep quiet about all the personal "dark side" things she overheard from his apartment, Rika demanded extra tutoring from Kurogane-san! (Source: LaLa, translated)

**This is the Televi Land serialization of Kamen Rider X.** Jin Keisuke tries to save his father Keitaro from an attack by G.O.D., but he is shot and killed in the process. However, Keitaro resurrects Keisuke as the cyborg Kaizorg, in exchange of his own life. Learning of his mission from Keitaro's last words, Keisuke becomes Kamen Rider X and battles G.O.D.

Izumi, a junior high teacher, left Tokyo for a new job in the countryside after getting dumped by her fiancee. Still feeling heartbroken and depressed, she had a moment of weakness that was witnessed by her new student Kuga-kun!

Koike Kazuo Masterpiece collection featuring many prominent artists.

Awarded the 28th Shogakukan Manga Award for children category in 1983.