Kaisei Mogami (World of Ex-Aid)

Kaisei Mogami (最上魁星) is the counterpart of Kaisei Mogami in the World of ExiAid, and the main antagonist of Kamen Rider Heisei Generations FINAL: Build & Ex-Aid with Legend Riders.

Devices

 * Nebula Steam Gun - Transformation device and sidearm.

Portrayal
He is played by Kenji Ohtsuki (大槻 ケンヂ).