Vinsmoke Sanji

Vinsmoke Sanji, most commonly known by his moniker "Black Leg" Sanji, is a pirate and the cook of the Straw Hat Pirates, as well as the former sous chef of the Baratie. He is also the third son of the Vinsmoke Family, thus making him a prince of the Germa Kingdom, until he officially denounced them once again. He is officially the fifth member of the crew and the fourth to join, doing so at the end of the Baratie Arc. Since he was born in North Blue, he is the first Straw Hat not to originate from East Blue. He is one of the Monster Trio in the crew, alongside Luffy and Zoro. His dream is to find the rumored chef's paradise, All Blue, which is where East Blue, West Blue, North Blue, and South Blue meet, along with their wildlife. He has a bounty of Beli177,000,000, which is only valid if captured alive, per the request of his father.

Sanji is one of the crew's top three fighters (despite not having one of the top three bounties, which Luffy, Zoro and then Usopp takes). While Luffy and Zoro usually fight the strongest and second strongest enemies respectively, Sanji usually ends up fighting with the enemy considered the third strongest - the only exception being Dressrosa, where Sanji fought a much stronger opponent before leaving. Sanji is the only member of the crew who does not utilize weapons or devil fruits in combat, relying instead on a martial arts combat style that centers on his leg strength. Although Sanji and Zoro would usually let their rivalry impede their fighting performances, they have proven to be a near-unstoppable force if they agree to cooperate for the battle, as seen when they instantly turned the tables against the Groggy Monsters. As a member of the infamous Vinsmoke Family, Sanji was raised and trained from an early age (along with the rest of his siblings) in the ways of warfare and combat. Like his siblings, he also received genetic enhancements from his father, designed to endow him with superhuman abilities. However, due to his mother, Sora's intake of a counter-drug, Sanji's genetic modifications were possibly neutralized, thus preventing him from receiving these modifications, and was born as a normal human. Consequently, he could not keep up with his siblings, and his strength did not rise from such training. As a result, Sanji could not keep up the extremely grueling Germa training, but gained and adapted to a different style of combat through Zeff.

As a former prince of the Germa Kingdom, it can be implied that Sanji would have had the same political and military power possessed by the rest of his family. However, due to his decision to renounce his title and status as a royal (as well as his father's decision to cast him out of the family), Sanji has willingly given up any and all claims to these kinds of advantages; similar to Sabo. Despite this, it has been shown that he still retains political authority over the Germa Kingdom's subjects as shown during his childhood, where the rest of the kingdom treated him with the same respect as they treated the rest of his family (despite his family's own poor treatment of him), and upon his return to the kingdom after 13 years, they continue to do so. Due to years of very hard training under Zeff since childhood, Sanji has gained extraordinary superhuman physical prowess, particularly, speed and agility, which enables him to use an array of handstands for a kick-based martial art, which makes him immensely versatile in combat. Sanji has immense physical strength. In his very first appearance, he held Fullbody up by the neck unsupported with one hand before even displaying his lower body strength. In the Arlong Park Arc, he was able to stop Kuroobi from killing Genzo and Nojiko in the water by grabbing onto his leg despite the natural advantage and strength a fishman receives when submerged. At Little Garden, he hauled a dead Tyrannosaurus Rex though the jungle and back to the Merry with little effort. In the anime Ocean's Dream Arc, Sanji was able to carry the Beli300,000,000 worth of solid gold in a sack over his shoulder, something Nami could barely drag across the ground. In Skypeia, when Gan Fall was explaining the Dials, Sanji was shown to be able to lift a huge sledgehammer that appeared to weight several tons and used it to test the Dial. If the Dial had not absorbed the impact, Sanji would likely smashed a hole though the Merry's deck. After Luffy and Usopp dueled in Water 7, Sanji was able to easily restrain Chopper in Heavy Point from going to treat Usopp's injuries, as well as later being able to pick up and with Zoro's aid throw Franky, a large and heavy cyborg, very high. Sanji could hold Nami above his head and keep her balanced while receiving countless attacks to his body from Absalom. In Zou, Sanji was shown lifting a huge pile of wounded minks with little help. Another example of his physical might is seen when he was able to hold Absalom in place by gripping onto his leg, despite the latter's reinforced muscular structure and being struck multiple times while doing so.