Kamen Rider ZX: Original Story

Kamen Rider ZX: Original Story (仮面ライダーZXオリジナルストーリー) is a 2003 novel written by Tohru Hirayama that merging the original conception and the TV special to build up ZX's full story. Some of the character personalities and re-imagination concepts will be later used in Kenichi Muraeda's Kamen Rider Spirits manga.