Rosyuo

Master Roshu is a White Overlord Inves and is responsible for countless murders of the old civilization trapped in the Helheim Forest, and has targeted Japan next.

Appearance

 * Kamen Rider Gaim
 * Episode 27: When You Know the Truth...

Language
Master Roshu and the other Overlords seemingly has its own language. This is similar to the Gurongi Language from Kamen Rider Kuuga, the Undead from Blade and Fangire from Kiva, in which an enemy faction has its own language that the Japanese do not understand,. As with the Gurongi, Japanese subtitles aren't provided for Master Roshu's speech, it is unknown if they will be provided in a later release such as a TV rerun or DVD release.