Jinza is a short-statured boy, though not the shortest among peers. His blue hair spikes upward like wolf ears, complemented by blue-green eyes, thick rectangular eyebrows, and distinctive blue triangular face paint on his cheeks. He wears a predominantly white ninja outfit with a yellow collar and blue triangle patterns, layered over a red undershirt. A black belt bears a buckle inscribed with "Jyou" (上), symbolizing loyalty to his master.

He communicates mostly through soft grunts and exaggerated expressions, breaking silence only in battle to shout his technique name: "BakuTech Galow Raijin!" Despite his quiet nature, he displays formidable combat precision, executing BakuTech moves in flawless synergy with his partner Bakugan’s unique SBS rubber parts.

As one-third of the ninja trio "Shadow Sanjushi" with Karashina and Tohga, Jinza seeks vengeance for Master Jyou against Master Shimo. His partner is the Haos-attribute Well Galow.

Battle records show his tag-team match alongside Shadow Sanjushi against Raichi, Harubaru, and Tatsuma ending in defeat. Later, during Gachi Baku training at Quilt’s Temple, Jinza faces Tatsuma alone. He repeatedly lands Well Galow on Gate Cards while Tatsuma fails to deploy Gif Jinryu. When Tatsuma tries activating the "Jinryu Five" Ability Card for a reroll, Master Shimo nullifies it under Gachi Baku rules. Jinza wins by knocking out Twin Doubrew.

In a non-canon hallucination, a faceless illusion of Jinza appears before Tatsuma and Nivil. This phantom briefly joins a contextless Bakugan shoot with other characters before vanishing.