Canis Major

Sirius the Canis Major is a Celestial Spirit, one of the few from the Crystal Keys. He fights with various magic, his main style using the Susanoo Magic Seals and Amaterasu Magic Seals. His key is owned by Ahatake Kurosaki.

Appearance
Sirius has brown eyes and long dark hair that he keeps combed back, down to the nape of his neck. He is tall and wears dark trousers and a light T-shirt, over which he wears a dark jacket that has a fur-covered collar. He also wears a thin chain necklace that has an X-shaped pendant attached to it.

Magic and Abilities
Transformation: Sirius has the ability to transform himself into the form of a giant black dog that wields a monstrous sword.

Immortality: As a Celestial Spirit, Sirius is immortal and cannot be killed unless forced to stay in the human world somehow.