Vritra

Vritra is a infamous demon for having too many contracts(most he took away from other demons making him a target) and breaking a lot of general rules, he simply doesn't care about others opinions and cares about doing what he likes or what he finds to be the most enjoyable at the moment. Growing up he was always competitive with his brother to see which out of the two would raise the strongest witch, Vritra felt the best course of doing would to make/steal contracts until he found a witch interesting enough to look over and make a name out of himself through. He's currently on bad terms with his brother after stealing a contracted witch from him and permanetly damaging his eye during their last battle.

Currently Vritra looks over Star and does his best to direct her on her path to becoming a proper witch but holds a lot of information from her due to wanting her to figure it out herself slowly instead of feeding her information, he does so by saying he's not allowed to give that type of information but will give her a hint and aid. He has a playful side and likes to tease others but generally seems nice sometimes a bit too nice.

He has the desire to create the strongest witch just to flex on his brother.