Original Zero

Then, there's Zero. Strong silent type. I mean, too silent for my tastes. I like someone who knows when to shut up, but he hardly ever talks, and if he does, it's only to Sefer. But he's a badass. I mean, anyone who carries two Katanas, and has an eyepatch - I mean, it goes without saying. They're a badass. But there's not much to say about him, really. Original Zero, more commonly known as Zero, is a member of the Shinsengumi. He possesses the Stand Two Heavens as One.

Biography
Zero is quiet, but fierce. He is loyal to Sefer Yetzirah without question, and lives entirely by the code of Bushido.

Stand Alone Complex
Zero was present on the Kusanagi when Sefer returned to inspect the Fruit of Life.

Two Heavens As One
Zero's Stand is Two Heavens As One, and is named for Ni-Ten Ichi Ryu, a dual swords technique developed by legendary swordsman Miyamoto Musashi. Nothing yet is known about it, but judging by its name, it is safe to assume its appearance and abilities are related to sword combat in some away.

Trivia

 * Original Zero is named after the character Original Zero, from the series King of Fighters. Whilst the 'Original' in the KoF character's name denotes that he is the original Zero, as opposed to the character named Zero who is a clone of him, the BZPB character's name is a simple interpretation of the KoF character's name with 'Original' as the forename and 'Zero' as the surname.
 * Original Zero's name uses the Japanese naming convention, where the first name is the surname, and the last name is the given name. He shares this distinction with Masuta Kira.