Holdem was originally a human man who was magically transformed into a wolf beastfallen pf his own free will, and he is Albus the Last Mooncaller Witch's legal guardian due to the everlasting promise he had made to Sorena the renowned Mooncaller Witch.

"yo, I'm holdem, hmm? What?! you're challenging me?! not yet you-..... u-uhhmm.... aahh!! Whatever! I'll win over you!! You'll see!!"

Holdem - Mahoutsukai Reimeiki || Grimoire of Zero