Born as Scien, Queen was a member of MADS, a groundbreaking yet rogue scientific research group that also included figures like Dr. Vegapunk and Vinsmoke Judge. His expertise in mechanical engineering and bioweapons made him a valuable contributor to the team. After MADS was disbanded, Queen joined Kaidou’s Beasts Pirates, eventually rising to the rank of All-Star and earning his epithet “The Plague” for his use of infectious weapons in battle.

As one of Kaidou’s most trusted lieutenants, Queen was tasked with overseeing Udon, one of Wano Country’s regions, where he maintained a prison labor camp used to subjugate dissenters and exploit resources. His role in Wano made him a major obstacle for the Ninja-Pirate-Mink-Samurai Alliance during the Wano Country Arc.

Queen is a large, rotund man with a long, braided mustache and a mechanical arm, reflecting his affinity for cybernetic enhancements. He typically wears eccentric outfits, including a bright yellow jumpsuit, goggles, and a scarf, emphasizing his flamboyant and theatrical personality. His hybrid form, granted by his Ryu Ryu no Mi, Model: Brachiosaurus, combines his massive frame with the physical traits of a brachiosaurus, further enhancing his imposing presence.

Queen is loud, boisterous, and enjoys putting on dramatic displays to entertain and intimidate. He often balances his sadistic tendencies with a surprisingly comedic demeanor, making him a complex mix of dangerous and absurd. His loyalty to Kaidou is unwavering, though his interactions with his fellow All-Stars, particularly King, reveal a competitive and teasing dynamic. Despite his arrogance, Queen possesses a brilliant scientific mind, demonstrated by his creations of advanced weaponry and deadly viruses.

Wano Country Arc
Queen plays a central role in the Wano Country Arc as one of the major antagonists. Tasked with managing the prison labor camp in Udon, Queen oversaw the imprisonment of key characters like Eustass Kid and Luffy. His cruelty and use of infectious weapons, such as the Excite Bullets, showcased his ruthless approach to maintaining control. During the Raid on Onigashima, Queen fought against the Ninja-Pirate-Mink-Samurai Alliance, using his mechanical enhancements and Devil Fruit powers to pose a significant threat. His battle with Sanji highlighted his reliance on both his scientific expertise and brute strength, though he was ultimately defeated by the Straw Hat cook.

Role in MADS
Queen’s past as a member of MADS adds depth to his character, connecting him to other brilliant scientists like Dr. Vegapunk, Caesar Clown, and Vinsmoke Judge. His contributions to the team, particularly in the fields of cybernetics and bioweapons, are reflected in his current arsenal and abilities.

• Kaidou
  Queen is one of Kaidou’s closest allies, serving as an All-Star and one of the Beasts Pirates’ most influential figures. His loyalty to Kaidou is unwavering, though he occasionally displays frustration with his leader’s methods.

• King and Jack
  As fellow All-Stars, Queen shares a competitive and antagonistic dynamic with King, often engaging in humorous exchanges, while treating Jack with a mix of mockery and camaraderie.

• Sanji
  Queen’s battle with Sanji during the Raid on Onigashima highlighted his arrogance and reliance on his scientific enhancements, ultimately leading to his defeat.

• MADS
  Queen’s history with MADS connects him to notable figures like Dr. Vegapunk, Caesar Clown, and Vinsmoke Judge. His expertise in bioweapons and cybernetics reflects his contributions to the group’s infamous reputation.