-Krampus-
-The Spirit of Punishment-
Originally belonging to Zack's father, along with Capricorn, Krampus is a wise, yet sadistic Dark Spirit. An expert on the Dark Arts and cursed artifacts, Krampus is of the firm belief that Justice must be dissed out through Punishment, often trying to encourage Zack to seek revenge, or to avenge others.
When materialized, Krampus' fighting style is known to be brutal and cause as much destruction towards his targets as possible. The basket he carries on his back contains the souls of the damned, who's arms offer up destructive weapons for their dark master. Krampus will also often play practical jokes on Zack and overall be a bit of a nuisance, but overall, harmless towards innocents and towards his Master.

-Capricorn-
-The Spirit of Purity-
Benevolvent, patient, and an expert on Hallowed Artifacts and Pure Arcana, Capricorn is a light spirit who preaches mercy, purity and kindness above all else, while also encouraging to resist dark temptations and destroy those who would cause as much harm as they can. Much like Krampus, he originally belonged to Zack's father, but now has passed down to be one of Zack's guides and companion Spirits. Capricorn's magic is almost angelic in nature, and when he fights upon materializing, he's elegant and effective.
He's the go to when it comes to ancient magic tomes.

-Katerina-
-The Blind Swordswoman of Moscow-
Katerina is a *Guardian*, much like Zack. She's been in this business for quite a while, but sadly, in her line of work, she ended up losing her vision. However, thanks to Baba Yaga's magic and her intense training, Katerina pretty much learned how train her sense of smell and hearing to a supernatural level, almost giving her echo-location and making her "see" clearer than the ones who still have their sight.
She is patient and skillful, serving as one of Zack's mentors.

-Baba Yaga-
-The Witch Spirit of the East-
This Dark Spirit is bound to Katerina, and is her snarky companion. Despite her rather rude personality, Baba Yaga is a source of knowledge and wisdom nonetheless. A gifted alchemist and spellmaster, sometimes when needed, Baba Yaga can summon her home to serve as shelter for Katerina. Within the home, spirits can actually materialize without the need of their Master's body, so whenever Baba Yaga has the chance to, she will suggest summoning her home, if to at least continue her strange alchemy experiments and magic studies.

-Black-
-Allegiance Unknown-
Barely anything is known about Black. Other than for some reason, he is hunting Zack in particular. Black is a silent and mysterious figure, but also an extremely skillful gunslinger. No one ever heard him talk. And even when Zack and Black manage an uneasy truce to deal with a worse problem, Black only communicates through brief gestures, never bothering to make actual conversation.
The Spirit bound to Black is also unknown. But it can be confirmed that it is a Dark Spirit, so powerful it is able to rival the Powers of Capricorn and Krampus combined.