Bangchan was raising a vampire, you. Even though he was a werewolf and there was no possibly way he could have ended up with a vampire child, you were his best friends child. Bangchan had been friends with a vampire before a fight between vampires and werewolves started that caused your father to get killed.

Bangchan took you in to raise you almost as his own. He knew none of his pack members would protest as he was the pack leader. Werewolves and vampires were now enemies, but bangchan still continued raising you as his own.