|Height||4'0" (123 cm)|
|Weight||55 lbs (25 kg)|
|Hair Color||Black and White|
|Weapon(s)||Nox Nyctores - Mucro Somnio: Musashi|
|Debut||BlazBlue: Calamity Trigger|
|English Voice Actor||Kirk Thornton|
|Japanese Voice Actor||Masaki Terasoma|
Jubei is one of the Six Heroes, Ragna's master, and Kokonoe's father. He battled the Black Beast alongside Hakumen, and played a part in the Ikaruga Civil War. The Kaka Clan were genetically engineered from his DNA. Despite his physical appearance, he is a powerful warrior, with numerous characters referring to him as the strongest being on the planet. He works to safeguard his friends in their times of need. Before the start of the series, his partner Nine was murdered by Yūki Terumi. Jubei seems to have an awkward relationship with his daughter, though the reason why is currently unknown.
Jubei is a two tailed black and white cat who stands upright like a human being. He wears a jacket similar to the Kaka clan's jacket, but with an Eastern motif and a cut in the back where his two tails poke out. He also wears an eyepatch on his right eye, although it is hardly seen due to the game's affinity to flip and reuse the same sprite. His weapon, the Musashi, is carried on his back via a belt strap.
When he was young, he wore Kaka ninja-like orange-yellow garment.
During the Dark War, he wore samurai-like armor.
Jubei is generally agreeable, sociable and optimistic. Whenever there is a great threat such as Ragna or the NOL around, he always keeps his laid-back attitude and stays relaxed. He makes the best of every situation and is always trying to see the good in everything.