Sanji uses an array of powerful and varied kicking moves when he fights. His cooking skills are world class, and he was mentored in both cooking and fighting by Chef "Red Leg" Zeff of the Baratie. He was born in the North Blue, but grew up in the East Blue. Sanji is trash-talking and serious, and usually gruff and impatient, especially around men. This is contrasted by his "love-cook" side, as he is very amorous around women. Sanji is completely devoted to any beautiful woman, usually losing all common sense and composure in front of them, then attempting to comically swoon them. This behavior has earned him the nickname "ero-cook," or perverted cook. He can also be very chivalrous and gentlemanly around women, volunteering to help them in various tasks and situations, whether they need help or not. He has sworn to never let insult or injury happen to any woman while he can still stand, even if that woman is trying to kill him. This is often problematic in his fighting as he can't attack female opponents, and would rather die than hurt them. All this is apparently the result of a "strict upbringing." To contradict his gentlemanly behavior, Sanji also enjoys seeing women wear skimpy clothing, and can be a voyeur. His goal in life is to find the All Blue, a legendary ocean, which contains all the fish in the world. As such, it would be paradise for any cook with as much love for his work as Sanji, who holds great respect for the tools, ingredients, and art of cooking. So great is his devotion to his calling, that Sanji will not let any person or creature starve, regardless of them being friend or foe. Being the crew's chef, he looks out for the health of his crewmates. Sanji respects Luffy as a captain, but often gets angry at him for eating too much, showing disrespect for the aesthetics of cooking, and generally being daft and irresponsible. He is constantly in petty fights with Zoro (sometimes calling him Marimo) over each others' traits and they have developed a rivalry, but have managed to make a devastating team together. He is very protective of the female crew members and Nami likes to take advantage of him, exploiting his extreme servility. Sanji originally wanted to cook Chopper, but has come to respect him as a crew member and friend. He's also good friends with Usopp; they team up and interact often, and Sanji understands him quite well. In short, he cares as much for the crew as any Straw Hat should, but unlike Zoro, Sanji shows these feelings more.

Taiga is a girl in Ryuuji's class. She has a well-regulated and beautiful appearance though is unable to stomach company from others. Due to her often snapping at others in brutal ways and her short stature, she is given the nickname "Palmtop Tiger." Her under-developed body and the added nickname has given her a complex which in turn serves to give her a negative attitude and facial expression. Essentially, Taiga gets upset easily and is considerably clumsy. She is also brutally honest, typically when she is lashing out at someone. Due to her cute looks (described as a doll by Ryuuji), she often gets confessions of love by boys, but she turns down every one of them, including Yuusaku Kitamura (which she later regrets). Despite coming from a well-to-do family, her life with them is very difficult because of various problems. Her father and mother got a divorce, leaving Taiga with her father. When he remarried another woman who was significantly younger than himself, it caused misunderstandings between Taiga and her step-mother. One day it became too much for Taiga, causing her to run away from home and since then, she has taken to living on her own. Since she came from a privileged household, she does not know how to do any domestic chores. When she meets Ryuuji and learns of his domestic talents, she ends up relying on Ryuuji to clean up after her. Aside from sleeping in her own house, and going to school, she spends most of her time at Ryuuji's house; so much so that she is considered a member of his family. At the beginning of the story, she is infatuated with Ryuuji's best friend Yuusaku Kitamura and gets nervous every time he appears around her. Ryuuji finds out due to a misplaced empty love letter from Taiga meant for Kitamura. Ryuuji then admits to having feelings for Taiga's best friend Minori. Due to this, Taiga and Ryuuji team up to help each other get into a relationship with each other's best friend.