Goro (吾郎, Gorō) is a former sommelier who transforms into Kamen Rider G (仮面ライダーG, Kamen Raidā Jī). Goro was a guinea pig in Shade (シェード, Shēdo) for tests and was wiped of his memories. When he sees that his girlfriend Eri Hinata is amongst the hostages Shade has taken, he regains his memories and turns on the Shade terrorists. Oda is forced to reveal himself as the Phylloxera Worm, and reveals that several other Shade members have been converted into Worms. Goro transforms into Kamen Rider G to take on the Worms, defeating them all save for Phylloxera who is much too strong for him. Just then, Kamen Rider Decade and the other Heisei Riders appear to give Kamen Rider G the confidence he needed to destroy the Phylloxera Worm with his Swirling Rider Kick. As the Phylloxera Worm says in his last breath that the war is not over, Goro proclaims that he will protect the world from Shade's evil influence, before he can reunite with Eri.