|Japanese Name:||ニトロ ヴェン Kaian|
|English Name:||Nitro Kaian|
|First Appearance:||Introduction Arc; Comic 1|
|Epithet:||" Thunder Scar " Nitro|
|Japanese Name:||Shokku-Shokku Fruit|
|English Name:||Zap-Zap Fruit|
Nitro was the son of a pirate who made a pact with the local Marine Captain, as long as they make no trouble, they'll be allowed to visit. Unfortunately, that Marine Captain was soon promoted and replaced with one that was much more cruel, kidnapping Nitro in order to capture his father. Nitro's father was then executed, with Nitro hoping to become a better pirate than he was.
Nitro is shown on a stolen ship adding a his Jolly Roger, declaring it a Pirate Ship. This gains the attention of the Marines from the previous island. The Marines fire their cannons, initiating Nitro's counter attack. Nitro lands aboard the Marine ship and begins fighting the Marines, the Marine Captain of that vessel takes Nito by surprise and knocks him below deck where he meets the ships prisoner. The prisoner and Nitro make a deal to join forces to escape the ship, and for him to join Nitro's Pirate Crew. The duo clashed with the Marines with the aid of a passing pirate, Max Hedgedroid. Nitro had thought to have defeated the Marine Captain even with the use of his Nendou Nendou no Mi, and the three were confronted by a Marine Admiral, Pacifista Alpha. With no chance in battle the trio made an escape attempt back to their ship. Arriving to the ship they're greeted by a passing hitch hiker, Viu E. Blaze. Suddenly they are surpirse attacked by the Marine Captain, with Dark defeating him and settling his own vendetta. The ship is then surprise attacked by another Marine Captain of much higher strength, Fritz E. Kriegs. This encounter doesn't last long as Marine Lieutenant Blixx awakens and brings Nitro and Fritz back to the Marine ship in hopes of an explanation. Nitro is then brought back to the Pirate ship by Max's Kuki Kuki no Mi powers. The Pirates sail away, unaware Fritz's surprise attack damaged the rudder of the ship, leaving them sailing in one direction, Ravens Point.