" When an entity from outer space threatens Earth and humanity, all the Heisei Riders unite to fight it " Story inspired by Avengers Infinity War and Endgame Note: Take into account my ships My Ships : Shouichi/Mana (Agito) Ryotaro/Hana (Den-O) Keisuke/Megumi (Kiva) official Ryu/Akiko (W) official Eiji/Hina (OOO) Gentaro/Yuki (Fourze) Ryusei/Tomoko (Fourze) Shun/Miu (Fourze) official Kouta/Mai (Gaim) official Shinnosuke/Kiriko (Drive) official Alain/Kanon (Ghost) official Makoto/Akari (Ghost) Emu/Poppy (Ex-Aid) Taiga/Nico (Ex-Aid) Hiiro/Saki (Ex-Aid) Ryuga/Sawa (Build) Sento/Misora (Build) Sougo/Tsukuyomi (Zio) Kamen Rider Otp Geiz/Aura (Zio)