Granute, secret lifeforms, kidnap humans for "Dark Market Snacks." Shoma, from another world, transforms with Gochizo, a sweet-eating monster, into Kamen Rider Gavv via a mouth-like belt to stop Granute's attacks and save people.
Hidekazu Chinen
Yusuke Hino
Nozomi Miyabe
Kohei Shoji
Takashi Tsukamoto
