(from ebookjapan): Kawadota, who suddenly transferred to the 2nd year B class of the traditional and glorious "Ippon Academy" for family reasons, is an unusual male student of today, wearing a school cap, cape, and geta (wooden clogs). He is called "Chanchiki Gappa" because he always hums the folk song Chanchiki Orasaisa. ---- Oyabin, Erokuma, Goribancho, Butaman, and others are all unique individuals at Ippon Gakuen, but Chanchiki Gappa's abilities are out of this world. ......?

Keisuke Jin tries to save his father Dr. Jin from an attack by G.O.D. and is shot and killed in the process. However, in exchange for his own life, Dr. Jin resurrects Keisuke as the cyborg Kaizorg! Learning of his mission from Dr. Jin's last words, Keisuke becomes Kamen Rider X and battles G.O.D.!