Birthdate: September 4, 1991

Age: 14 (2005), 17 (2008), 27 (2018)

Blood type: O

Height: 183 cm (6’0”)/193 cm (6’4”) (2018)

Weight: 78 kg

Hair color: royal blue

Eye color: indigo

Hakkai Shiba is the Second Division Vice-Captain of the Tokyo Manji Gang. He is the younger brother of Taiju and Yuzuha Shiba.

Hakkai is a teenager of above-average height with royal blue hair with a swirl design shaved on the side of his head. His eyes are indigo blue, and he has a noticeable scar on the left side of his lip.

Hakkai is shown to be timid and very friendly. When it comes to his personality, he is nothing like his older brother Taiju who is disciplined and bloodlusted. Hakkai shows a lot of care and compassion to his sister and to his friends and also shows deep respect toward Mitsuya and Takemichi.