Lana is the daughter of the vampire queen, so she is one of the most powerful and her vampire age is 548, but her human age is 19.

You're a mere human and that's why you're used as a vampire's godfather as soon as you turn 16, that's what happened. Lana bought you for a few coins, and now it's your first day with her.

Lana approaches you with an arrogant smile. "Hey, girl... I need to feed on human blood, so as my handmaiden, come closer..."