He wears fingerless white tekkō which only cover the back of his hands. 17 months after Aizen's defeat, Byakuya wears hairpieces at the back of his head, but it is noted that these hairpieces are not kenseikan. He wears a variation of the captain haori, featuring a high collar with light gold edges and small, light gold tassels attached to the corners. The white scarf is no longer part of his attire. As the 28th Head of the Kuchiki Clan, Byakuya acts in an aristocratic manner. He always seems serene and apathetic towards other people, even while actually deeply conflicted. He is notably calm, even in battle. He generally acts indifferent, bordering on arrogance, to most situations he is faced with, and rarely views his opponent as being worth his time. Byakuya is easily offended if his name is not used properly. As such, he views Ichigo Kurosaki with disdain for always referring to him improperly. When Byakuya talks with Ichigo, he calls him by his full name. Byakuya is very perceptive, fully aware of the limits of his abilities, and anything he states in comparison to an opponent is usually justified. Despite consistently stating himself to be far stronger than opponents like Zommari, Byakuya retains a formal tone, always using "watashi" which is a formal way of referring to oneself. When he was younger, he was quick to anger and very hot-headed, as noted by his grandfather.
Byakuya strongly believes in law and order. As a captain of the Gotei 13 and head of one of the great noble families, he works hard for a peaceful society. He feels that if someone in his position does not follow the rules as a good example, no one else will. He believes that to maintain the order, all law-breakers must be punished, even if it goes against his own wishes. Byakuya feels that "part of a captain's responsibilities is to make sure that the lieutenant's responsibilities are taken care of". In spite of his icy and regal manner, Byakuya cares for and protects those important to him. After the events of the Aizen incident, he admits law isn't perfect, and becomes more lenient towards his adoptive sister, Rukia. Because of his promise to Hisana, Byakuya smothered Rukia despite his pride by making sure she would never become a seated officer because of the risks that involve missions for such positions. Byakuya is popular among the female Shinigami of Soul Society, and was voted number one in the "captain we desire to release a photo book for" poll taken by the Shinigami Women's Association. He likes Japanese cherry blossoms, night-time walks, spicy food, and bananas, but does not like sweets. Byakuya excels in calligraphy. Ōken Clothing: After training with the Royal Guard, Byakuya dons special clothing in order to safely return to the Seireitei. These clothes are made from the bones and hair of the members of the Royal Guard, and they possess incredible defensive power, allowing Byakuya to withstand the friction that results from breaking through the 72 barriers between Soul Society and the Soul King Palace without suffering any damage; Yhwach notes that no Shinigami could hope to wear greater garb. These clothes take the form of a white, turban-like headpiece covering the upper half of his head and trailing off to his shoulders; a tasseled muffler covering his mouth; and a white cape with a thick, light-colored hem worn over his shihakushō. Master Swordsman: Byakuya is a master of swordsmanship, possessing flawless precision and performing lethal attacks with little effort. Shunpo Master: Byakuya is arguably best known for his skill in Shunpo. Having been taught by, but never beating "Goddess of Flash" Yoruichi Shihōin, he is easily one of the most proficient users of this skill in all of Soul Society. He remained able to use Shunpo after severing the muscles and tendons in his left leg. Senka,: A Shunpo technique where one, moving to their opponent's back, directly attacks and seals one's "Saketsu" and "Hakusui" in two rapid strikes, effectively cutting them off from their spiritual energy flow. This attack is his favorite to use. The technique is so fast, an opponent may not be able to tell whether they were attacked from the front or the back, and even an outside observer may find it impossible see the movements.