Bayan is a tall, slim man with a long face and a square chin. He has ice blue, wavy hair with a blond wisp sticking out. He wears a long, white coat, with a purple collar and a red bow, whose inside layer is pink. Inside his coat he sports a white frilly shirt. He also has white flare pants and white boots, as well. He seems to be wearing lots of rings, too.
Bayan is very arrogant and greedy, seeing that he doesn't hesitate to kill in order to gain treasure. He is also willing to control others and make them fight against their friends and control children to get what he wants.
Bayan is a very weak person, since he didn't put up a fight at all against the Straw Hat Pirates and was completely defeated.
Bayan has an ability to control people's actions by having his pirate crew sing a song in chorus fashion. Using it he manipulated Amanda to reveal the treasure map etched on her back and also made Luffy attack the Straw Hats.
Before Amanda and her siblings were captured by Zap, Bayan and Amanda's father were both searching for a magnificent treasure. When Amanda's father found it, Bayan betrayed him and fatally wounded him, leaving him with only enough strength to return home and pass the location of the treasure on to his children.
Bayan and his crew then continuously hunted for the treasure, and Zap eventually captured Amanda and her younger siblings. Zap also captured Maccus and Bonney along the way, who Amanda struck a deal with to escape. After losing the children, Bayan became very frustrated with Zap and forced him and his crew to search for Amanda for about a month.
Open Upon the Great Sea! A Father's Huge, HUGE Dream!Edit
After finding the island, Bayan had Zap capture Amanda, but he captured Monkey D. Luffy as well, who was launched onto Zap's ship while in a deep sleep. Bayan could control people's actions by having his pirate crew sing a song in chorus fashion which is how he got Amanda to reveal the treasure map etched on her back and made Luffy attack his own crew. His plan is thwarted, however, when Usopp shot his new sleeping pellets that he and Chopper invented into his crew's mouths while they were singing, knocking them out. When he went to find out what happened to Zap, Bayan found himself on the receiving end of a Straw Hat seven-way group attack.