The fourth-born of five brothers, Byakuya is a vocalist and specializes in the keyboard, as well as writing lyrics and producing music on his PC. Due to his mysophobia, he's constantly seen with gloves on his hands and has a habit of spraying disinfectants. Byakuya is knowledgeable on all kinds of medicine, which he tries out on himself. He posseses a vast knowledge on music as well, which cannot be expressed in words. He's very sensitive, with one of his recent favorite sayings being "pien". 
Overall, Byakuya is noted to be an artistic individual with an original music taste.