Arc 3The King of Knights
Arthur fought in the Paramount War, gained a reputation as the King of Knights, and explored Fish-Man Island with Nami and Robin. After defeating Blackbeard’s crew and spending a month at Gran Tesoro, Arthur drew a five-billion-Beli bounty and encountered Kaido at sea.
- Arthur clashed with Whitebeard and Marco at Marineford, then fought alongside Akainu before Ace was killed protecting Luffy.
- Shanks intervened to end the war, and Arthur left Marineford with King's Horse, an unknown Devil Fruit, and several black boxes.
- Arthur gave Nami the Space-Space Fruit, and she demonstrated how she could store objects and make herself and others intangible.
- Arthur took Nami and Robin to Fish-Man Island, where they visited Shirahoshi and Robin examined the Poneglyph before the group departed for the New World.
- Arthur destroyed an alliance fleet with lightning, then rejected Blackbeard’s offer and fought his crew on Bill Island, defeating them and destroying the island.
- Arthur brought Nami and Robin to Gran Tesoro, where Robin confessed her feelings and the three stayed for a month.
- After Arthur won more than thirty billion Beli at the casino, Gild Tesoro arranged an anonymous five-billion-Beli bounty on him.
- As a tsunami approached the Don Stallion, Arthur identified Kaido swimming toward them, and Nami helped Arthur and Robin escape into her alternate space.