Yabibi was an elderly man. He had prominent cheekbones as well as advanced male pattern baldness. He wore a hoodie with a pair of matching trousers.
Yabibi was a calm, reserved, and rational man, who liked to take prudent measures before making risky moves.
Greed Island arc
Yabibi and his partner Montreux are amongst several other groups who are invited to a meeting organized by Kazsule to discuss how to deal with the Bombers. When inquired on how to steal the Bombers' cards, Asta the leader of her own team suggests using brute force, but Yabibi objects to the idea since they don't know the Bomber's abilities. Kazsule then proposes an alliance with the players and after Killua and Asta settle their argument Gon divulges to the group the Bomber's abilities. After Asta divulges some tips and tricks about the game, Yabibi explains when you begin to obtain S-Ranked cards you need to use cards like "Mimic" and others on them. When everyone in the group details tips and tricks about the game, an alliance is formed. He's also surprised to hear that Gon's group has acquired the "Wild Luck Alexandrite" and his partner Montreux offers to trade three S-Ranked cards for it. Before they choose what cards they want to get a monopoly of a card the Bombers have yet to obtain to hinder their progress. Yabibi suggests they first use a "List" to find out what cards can be monopolized and ultimately it's decided to try and obtain the "Plot of Beach". The player Amana uses a "Guidepost" to locate the card and the alliance heads to Soufrabi.
Upon arriving in Soufrabi, Kazsule explains how to obtain an SS-Ranked card and the alliance split up into groups and head into Soufrabi to find information on the "Plot of Beach" card. Yabibi and Montreux inquire an old man NPC about the card, but he claims he doesn't know anything about it. Eventually, Kazsule finds a woman NPC who has information about the card and will tell them where to find if they drive Razor's Pirates out of town. Amana surmises that they activated a preexisting condition to have the NPC woman to divulge such information, which Yabibi agrees with. The alliance members are then lead to the pirates' base in town and are challenged to a sumo match by a large burly pirate by the name of Bopobo.
Zeho tries to beat him, but fails, so after Gon saves Zeho, Killua defeats Bopobo and they're lead to the pirates' lighthouse base. Razor challenges the alliance members to a series of trials and Yabibi's partner Montreux takes the first challenge against the Pirate boxer. Montreux, however, loses the match and the alliance members lose the other matches on purpose to find out what sports trials there are to acquire the card. Kicked out of the base the alliance breaks up because it's believed the Bombers have no way to acquire the "Plot of Beach" card.
Abilities & Powers
Gon's team estimated him to be too weak to defeat Razor's convicts, as turned out to be the case. Yabibi was also unable to see the Pirate boxer's warping uppercut.