“Kamen Rider Ex-Aid” is a live‑action tokusatsu series produced by Toei Co., Ltd., with scripts penned by Yuya Takahashi and directed by Shōjirō Nakazawa, Kōichi Sakamoto, Kyōhei Yamaguchi, and Toshiro Morita. The show stars Kanaki Iijima, Toshiki Seto, Kyōki Matsumoto, and others in leading roles [1] [30].

As the 18th installment in the Heisei era, “Kamen Rider Ex-Aid” unfolds against the backdrop of a rapidly spreading novel virus capable of directly infecting human hosts and triggering Game Disease. Dr. Eiji Hoshino, a pediatric resident who serves as a member of the top‑secret “Computer Rescue Center”—collectively known as “CR”—leverages his unparalleled gaming prowess to fight the virus as Kamen Rider Ex-Aid, dedicating himself to the treatment of Game Disease. Along the way, long‑forgotten fragments of his past—and the intricate connection between himself and the virus—gradually come to light [1].