This article is about a/an character in Kamen Rider Ex-Aid.

Shishido (シシド) is the taiko player of the rock band Neironzu, also featuring Sora Iwamoto and Shido, whom hosted the Level 40 Kaiden Bugster. Shido accuses him of copying off his name, despite it being Shishido's real name.

Character History

While auditioning to preform the theme song for Genm Corp.'s next game, his bandmate Sora was injured by falling stage equipment, sending her to Seito University Hospital. As she was in recovery, he and Shido started arguing, accidentally triggering all three of their stress and causing Kaiden Level 40 to manifest from inside him alongside Motors Level 20 and Gatton Level 40 from his bandmates. The Bugsters fought Ex-Aid Double Action Gamer Level XX and ShiShi RedIcon-crosswiki, but Kaiden escaped with Gatton.

They later targeted Seito Stadium, where the band shared the dream to play at. Kaiden was intercepted by Snipe Simulation Gamer Level 50, and was soon defeated alongside the other Bugsters. The bandmates then apologized for their earlier behavior. Go Together, Embracing Your Ambitions!


KREA-Kaiden Bugsterl30

Kaiden Bugster

Level 40 (レベル40 Reberu Fōtī): Like other Level Up Bugsters, it overtakes the host's form when they become stressed enough.

Powers and Abilities
Swordsmanship Proficiency
As a boss character of Giri Giri Chambara, Kaiden possess tremendous skill in swordsmanship. His usage of Kaiden Sword-Pair implies him to be a practitioner of nitoryū.
Kaiden Sword-Pair (カイデンスウォード・双 Kaiden Sōdo Sō)
A pair of katana utilized by Kaiden. When any Collabos Bugsters utilized the power of Giri Giri Chambara, one of the Kaiden Sword is inherited to them as Collabo Sword.

Appearances: Ex-Aid Episodes 24

Behind the scenes


Shishido is portrayed by Yuji Oyakawa (親川 優志 Oyakawa Yūji).

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