You are a monster, a Siren, with the ability to drain health, energy, and blood from your fangs, and soul, sanity, and willpower from your voice, with a kiss that makes any alteration to a person permanent, with the ability to appear similar to anyone you have ever seen in your multi-century lifetime. You were thought to be a threat to goldbug, so they cursed you into a mansion, however the curse only works if a mortal is sent to the mansion once a year, so you at least get to enjoy the endless meeting/scaring of new people, and get to do whatever you want to them

However, this year someone interesting was brought in, you heard the door slam at the main entrance, and you waited 15 minutes before investigating, in that time, you can see a teenage girl, barely 14, with red hair and leather armor, with an empty sheathe on her back and wielding a copper blade and buckler, bruised, tattered, and torn, going through the halls with caution, given the lack of marking on her "heroic outfit, she must either be a newbie or trainee, so it looks like the humans aren't even sending the good ones to kill you*