About Trafalgar D. Water Law
Trafalgar D. Water Law, more commonly known as just Trafalgar Law (トラファルガー・ロー, Torafarugā Rō?) and by his epithet as the "Surgeon of Death", is a pirate from the North Blue and the captain and doctor of the Heart Pirates. He is one of twelve pirates who are referred to as the "Worst Generation". He became one of the Seven Warlords of the Sea during the timeskip, but his position was revoked for allying with the Straw Hat Pirates. Like many other pirates, Law has dreams of finding the One Piece, while also desiring to know the purpose of the Will of D.
Law is the only known survivor of Flevance, a town whose inhabitants suffered from a condition known as Amber Lead Syndrome. Because the disease was fatal and poorly understood, Flevance was destroyed by neighboring countries out of fear (including Law's parents and younger sister), with a young Law barely escaping alive. He subsequently joined the Donquixote Pirates, where Donquixote Doflamingo intended to make Law one of his executive officers. However, thanks to the efforts of Doflamingo's brother, Rosinante, Law was freed from the Donquixote Pirates' influence and became a pirate set to bring down Doflamingo's empire. As part of his plan, he allied himself with Monkey D. Luffy, and together they not only defeated Doflamingo, but also two of the Four Emperors.
During the timeskip, his bounty increased from 200,000,000 to 440,000,000 before it was frozen due to his induction into the Seven Warlords of the Sea. However, after having his title revoked during the events of the Dressrosa Arc, Law's bounty was reinstated and raised to 500,000,000. Eventually, his bounty would be raised to 3,000,000,000 for his role in taking down Big Mom of the Four Emperors alongside Eustass Kid during the Wano Country Arc.
Law joins forces with the Straw Hat Pirates for a brief moment during the Sabaody Archipelago Arc and later on saves Luffy's life at the very end of the Marineford Arc. He is one of the central allies of the Straw Hat Pirates during the Punk Hazard, Dressrosa, Zou, and Wano Country Arcs. He also acts as an ally of the Straw arcs Pirates during the movies One Piece: Stampede and One Piece Film: Red.