In 1999, an enormous meteor crashed onto Earth carrying extraterrestrial creatures known as Worms within it. These creatures took on the identities of real humans and then killed them. In order to counter this new threat, ZECT was formed, who in turn created the Masked Rider System to combat the Worms. The battles lasts over seven years, depleting Earth's resources and turning it into a barren wasteland. By present time, power struggles in ZECT have caused a new group, known as Neo-ZECT, to be created. Souji Tendou, a man weilding the Kabuto Zector, decides to sell his power to either ZECT or Neo-Zect for unkown reasons.
水嶋ヒロ
as Souji Tendou / Kamen Rider Kabuto
佐藤祐基
as Arata Kagami / Kamen Rider Gatack
里中唯
as Hiyori Kusakabe
小林且弥
as Hidenari Oda / Kamen Rider Hercus
虎牙光揮
as Tetsuki Yamamoto / Kamen Rider Ketaros
Musashi
as Issei Kurosaki / Kamen Rider Caucasus
藤沢玲花
as Hiyori from 7 Years Ago
Sean Wiig
as Tendou from 7 Years Ago
奥村夏未
as Juka Tendou
浅野香織
as Satomi Kusakabe
森下千里
as Shura Hokuto
徳山秀典
as Sou Yaguruma / Kamen Rider TheBee
