Daizen

Daizen (ダイゼン) is one of the 10,000 players who were trapped in «Sword Art Online» and the Head of Finances of the «Knights of the Blood» guild.

Appearance
Daizen is a fat man with short, black hair who walks with a waddling gait and has a round face. He wears a metal white and red KoB uniform and, according to Kirito, it would be impossible to find a person less suited to wearing it. In the light novel series, Daizen is said to speak with a sort of heavy accent.

Personality
Daizen is a very profit-minded individual who would turn any event, like Kirito's duel with Heathcliff, into a money-making financial gain to the guild.

Aincrad Arc
Daizen is seen selling tickets to spectators for this duel. He organized the duel on the 75th Floor between Kirito and Heathcliff in Collinia, and charged admission to the Colosseum. Over a thousand spectators came, and the Knights of the Blood made a significant profit from the event.

Daizen was logged out after Kirito defeated Heathcliff, prematurely clearing the game.