He is also the captain of the 6th Division in the Gotei 13, and his lieutenant is Renji Abarai.
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. [Source: wikia]
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