Genta Umemori is a childhood friend of Takeru who meddled in his training, much to the dismay of Hikoma. Genta is the son of a Sushi Shop owner who mysteriously disappeared before the beginning of the series. Genta promised to Takeru that he would help him in his battle by becoming a samurai. He was given the Ika Disk by Takeru in secret. After many years, he developed his own 'Electronic Mojikara' and inherited the Gold Zushi cart from his father. The Shiba Household's vassals meet him after buying sushi from him, they were initially suspicious of him until he made a formal introduction. Though Takeru was reluctant at first for various reasons to allow Genta join the group, he allows Genta to fulfill his promise. Genta considers himself Takeru's best friend and his personality is hyper and fun-loving, bringing out a different side from Takeru. As Shinken Gold, he is the Samurai of Light and uses sushi-themed accouterments to transform and battle, including exploding chopsticks that he uses as a civilian.