Sanji Vinsmoke

Sanji is a slim, muscular, long-legged man with blond hair which he keeps brushed over one side of his face. Before the timeskip, this was the left side. After the two-year timeskip, he switched his hairstyle so that it covers the right side. It also appears that Sanji's hair is less straight and scruffier after the timeskip.

Among Sanji's physical traits are his distinctive eyebrows. Both form a spiral but at different ends. His right eyebrow forms a spiral at the outer end, while his left eyebrow forms a spiral at the inner end. His eyebrows curl in the opposite direction from his siblings, whose eyebrows curl in a counterclockwise direction (i.e., to the left side). Sanji's eyebrows instead curl in a clockwise direction (i.e., to the right side). During his battle with Queen, when his dormant genetic modifications awakened, Sanji's eyebrows switched to curling in the same direction as his siblings' (i.e., to the left side). After being unconscious for a brief period, when he awoke, his eyebrows had returned to their original shape. When fighting S-Shark, his eyebrows changed direction again, although they reverted back following the battle.

While Sanji's eyes usually seem black, he was depicted with grey-blue eyes in the anime at the beginning of Thriller Bark Arc.[34] This is shown again during the Punk Hazard Arc, when Trafalgar Law switched Sanji into Nami's body, and her usual brown eyes became grey blue in color.

Sanji almost always wears a black, double-breasted suit with golden buttons and a tie together with a long-sleeved buttoned shirt of varying colors, usually orange, blue, turquoise, or black, with or without pinstripes. His outfit changes on a more frequent basis than most of the crew.

One of Sanji's most easily noticeable characteristics is the kind, calm, cool, and collected manner in which he carries himself. He tends to speak in a very composed manner, even in dire situations, and rarely acts without thinking. His demeanor in a lot of ways can be compared to that of a secret agent. This is amplified by the fact that he tends to wear a suit, very often enjoys a smoke, and in the anime, they tend to play smooth music with jazzy undertones when he speaks. He quite often makes comedic exceptions to this, such as when in the presence of beautiful women, or when angered by a crew member.

Like Zoro, he is more perceptive than he seems, and often tells people what they need to hear instead of what they want. Hence, he is seen as one of the more hardened members of the crew. For example, when the Straw Hats first meet Laboon and learn that the whale had been waiting for 50 years for a reunion with his crew, it is Sanji who immediately (and correctly) points out that Laboon's crew is most likely dead. Sanji does possess an optimistic and idealistic side. His dream is to find a sea that even other cooks consider mythical. Furthermore, even after the abuse, he experienced from his family as a child, he held out hope that they may have changed for the better. However, this hope proves to be completely futile, but he was angrier than surprised at the revelation, showing that he maintains a healthy sense of skepticism even at his most hopeful. Sanji also showed a high degree of faith in his fiancée, Charlotte Pudding, and was horrified and downcast when he discovered her true motive.

Like Franky (and unlike Zoro), Sanji is not afraid to show his emotions when the moment calls for it and is entirely capable of crying or losing his temper, which results in Sanji's short fuse and subsequent beatings of most villains (and Luffy). In fact, a running gag has appeared since Sanji's fight with Jabra, during which he stated that when he gets angry, he "heats up". After this fight, when Sanji gets particularly angry at a villain, he appears to burst into flames. This occurs with both Absalom and Duval, though the latter example appears only in the anime. It is also seen when Luffy states nonchalantly that he is friends with Boa Hancock, considered to be the most beautiful woman, when she appears to prevent a Marine ship from sinking the Thousand Sunny.

Despite his hardened outlook on life, Sanji does not object to acting foolishly on certain occasions, like dancing with the more immature members of the crew (Luffy, Usopp, Chopper and Brook), or acting childishly excited in certain situations (like when they first visited Skypiea) and he was also the crewmember who enjoyed going to Fish-Man Island the most as he was seen partying with mermaids. He is also one of those who believes that afros give power.

Sanji seems to enjoy relaxing with a cup of tea (his favorite drink) as seen when he entered Mr. 3's wax house and helped himself to Miss Golden Week's tea set. This habit came up again in Enies Lobby when Kalifa distracted Sanji by offering him tea; in another instance, Sanji angrily refused Bege when he was offered something to drink while trapped inside of Bege's body.

Since at a young age, Sanji has a habit of saying "shit" or "shitty" when describing something. While the Japanese word for feces, "kuso", is not specifically an expletive, Sanji's manner of speech makes the term sound brash. For example, he might call a person he especially does not like a "shitty bastard" or something along those lines.

The Black Leg Style was created by Zeff with a complete emphasis on kicks, repurposing the use of hands into acrobatics such as handstands to augment the force and range of kicks and to prevent the hands from being damaged during a battle, something that is disastrous to a chef like Sanji. Thus, it boasts a wide and impressive array of kicking techniques coupled with superior acrobatic skills, making it an extremely versatile martial art, able to effectively weave continuous and powerful attacks upon adversaries and overpowered numerous enemies at once with incredible efficiency.

Sanji respects Luffy as a captain, but often gets angry at him for eating too much, showing disrespect for the aesthetics of cooking, or stealing food rations in which he often put a giant mouse trap near the refrigerator or locks it. Along with Nami, Sanji is the crew member who beats up Luffy the most often. He also dislikes Luffy's imitations of him, although this may also be because of their inappropriate timing, rather than the imitations themselves. Sanji often says he chose an "idiot" for a captain, but conversely states that Luffy is far better than most pirates. Luffy quite often asks him to cook an animal that he's defeated, and Sanji rarely objects. In spite of Luffy's gluttony, he does care for Luffy, and, as the best swimmer on the crew, he is shown dragging his captain out of the water more often than any of the other crew members. When the crew met Luffy's grandfather Monkey D. Garp, Sanji was surprised by Luffy's connection to a legendary marine but stated he understood Luffy's personality and strength after hearing about his training. However, he was stunned to hear Luffy was the son of the world's most dangerous criminal and that Luffy never heard of him.

Though they can behave casually and calmly towards each other, Sanji very frequently gets into physical and verbal fights with Zoro (who he refers to as "marimo" or "mosshead" because of his green hair); in turn, he is nicknamed "shitty cook", "ero-cook", "Mr. Nosebleed" and "Prince of Dumbass Kingdom" (among other things) by Zoro. During the Little Garden Arc, Sanji and Zoro unknowingly took on the same challenge of dinosaur meat hunting that the two legendary giants, Dorry and Brogy, started 100 years ago. Despite their rivalry, however, the two respect each other's abilities; after Wanda accidentally implied that the minks had killed the Curly Hat Pirates, it is Zoro who calms the others down by reminding them that Sanji was with them, and that he would not have let half of the crew get killed.

Although he spends a lot of time arguing or competing with Zoro, Sanji is not beneath siding with Zoro on those rare occasions where Zoro has seen the bigger picture more than everyone else (e.g., on their preference for death rather than dishonor during the Davy Back Fight, and on Usopp rejoining the crew). He also tried to stop Zoro from sacrificing himself to Kuma to save everyone else by offering his life instead, although the swordsman knocked him out first before he could do so. After waking up to find Zoro missing, he showed great concern at what may have happened to him and was the first to find Zoro in the aftermath of Kuma's attack. Furthermore, although their rivalry sometimes impedes their effectiveness during battle, once the two agree to work together, they become a near-unstoppable force.

The moment Sanji saw Nami in the Baratie, he was enamored with her and tried to flirt with her as he does with the other women he encounters. Nami, on her part, was pleased she was getting special attention, leading her to manipulate the cook numerous times. Sanji appears to be well aware of this manipulation but is happy to continue being constantly subservient; in fact, Sanji has claimed that 98.72 percent of the reason he was joining the crew was because of Nami, despite not actually being true. He is kind to her, as he is to all women he comes into contact with. Sanji does occasionally get on Nami's nerves, such as when he makes a declaration of love during serious moments. Sanji will sometimes anger Nami, and she does not hesitate to beat him up (though he does not seem to mind). This was most notably shown when Trafalgar Law used his Devil Fruit powers to switch Sanji into Nami's body; Sanji's perverted delight at being in her body caused Nami to freak out and become furious with him. When they switched back, she punched Sanji for changing her coat (a misunderstanding caused by her assuming that he had stripped to see her body), despite him taking great care of her body while she let his get damaged. Sanji hates treating Nami roughly in any manner and is always gentle with her; this is another reason why Sanji fights with Zoro as the swordsman is prone to shoving Nami roughly out of peril. However, if she is immediate danger, Sanji will throw Nami out of harm's way as well, as was seen when she and the others were trapped inside Capone Bege. When Zeus joins Nami as her newest servant, Sanji stakes his claim of being her servant first and foremost.

Sanji will not tolerate Nami being insulted or harmed in any way, like when Kuroobi bad-mouthed her causing Sanji to send the fish-man flying. Her safety is a frequent cause of his own injuries, such as on Drum Island when Nami was gravely ill, and Sanji joined Luffy in taking her to the doctor's and got his spine cracked as a result of the avalanche caused by the Lapahns, in Skypiea when Sanji went aboard the Ark Maxim with Usopp to save her from Enel only to be blasted by the God for his heroics, and on Thiller Bark when Nami was kidnapped by Absalom to become his bride, Sanji (furious at the prospect of Nami marrying another man) went alone to rescue her and got knifed in the shoulder while protecting her. Sanji was also angry at Jinbe when he admitted he was the one who let Arlong loose on East Blue, which resulted in Nami's experiences under Arlong's reign, and it was only due to Jinbe's friendship with Luffy that he gave Jinbe a chance to explain himself; however, even after listening to Jinbe's story, he still could not forgive him for what Nami went through he suggested that if Jinbe wished to atone, he should cut open his own belly (he only relented after Nami defended Jinbe). Sanji trusts Nami very much and not just by her navigator skills; Nami was the one who Sanji entrusted the letter to Luffy to and directly apologized for keeping secrets from her and the crew. He also has a massive crush on her