A grade schooler with a big mouth and the skill to back it up. He's very enthusiastic and energetic about Vanguard and doesn't care who is opponent is so long as they are not weak in his eyes. He hates being looked down upon because of his size and age. He also has a crush on Aichi's little sister, Emi, and constantly vies for her attention, even going as far as to refer to Aichi as his older brother. Kamui is almost always accompanied by two other kids; the one wearing glasses would make a comment, and the one with the topknot hair would abbreviate what was just said and end most of his sentences with "-ssu!"
Kamui is the second person to defeat Aichi in a game of Vanguard. Kamui has commented that he likes to take the second turn at the beginning of a game as doing so gives him the first chance to attack. Kamui battles using a Nova Grappler Deck that is based on Machines, and his ace is Asura Kaiser.
an extended description!