It's September 2018, and a group of high school students are more than ever excited to pursue their dreams. Sougo Tokiwa wants to become a desirable king, and Keito "Geiz" Myokoin works tirelessly to become the true judo champion while trying to impress his crush, Alpina Tsukuyomi. However, one day Geiz suffers a career-ending injury during a judo match in a judo tournament, forcing him to give up his dream of become a judo champion. While still grieving, he was met by a mysterious man, who wanted to give Geiz a Ridewatch and a Driver. "My name is Woz, I came here to guide you to become a savior. If not, Sougo Tokiwa will become the worst and evillest demon king." Meanwhile, a new transfer student leads him to nothing but one grand conspiracy.
押田岳
as Geiz Myokoin / Kamen Rider Geiz
戸谷公人
as Daiki Kaito / Kamen Rider Diend
奥野壮
as Sougo Tokiwa / Kamen Rider Zi-O
大幡しえり
as Tsukuyomi / Kamen Rider Tsukuyomi
渡邊圭祐
as Woz / Kamen Rider Woz
板垣李光人
as Heure
紺野彩夏
as Ora
兼崎健太郎
as Swartz
村上幸平
as Masato Kusaka / Kamen Rider Kaixa
木ノ本嶺浩
as Ryu Terui / Kamen Rider Accel
岩永洋昭
as Akira Date / Kamen Rider Birth
