Kamen Rider Zangetsu: Gaim Gaiden (novel)

Kamen Rider Ex-Aid: ~Mighty Novel X~ (小説 仮面ライダーエグゼイド 〜マイティノベルX〜), is a novel based on Kamen Rider Zangetsu -Gaim Gaiden- stage show but telling a different story that unrevealled in the stage.