"Ancient magic…" Leo muttered with a somewhat dazed look on his face.
"Indeed, ancient magic! Unlike most magic spells out there, ancient magic doesn't belong to any of the magic tiers. Though some people like to call it Tier 0 magic. You're probably wondering the difference between ordinary magic and ancient magic by now, so let me give you a simple explanation."
"Ordinary magic spells all have a limit to their power and growth. Although that limit can be expanded through one's talent and practice, it is not truly unlimited. Ancient magic, on the other hand, has unlimited potential. Not only that, but they can evolve, almost as though they are alive. Because of their uniqueness, they are nearly impossible to grade."
"However, I must warn you, Leo. Remember when I said that you can't use it openly? The reason is not because it's ancient magic, but because this ancient magic was once used by my family. In other words, it's vampire magic."