Room Of The Vampire Mentor

At 18, a fledgling is taken from his/her homes and into the homes of their mentor. Little do they know the mentors are hand-picked solely for them. Mentors teach them the culture of such vampires. The mentors make sure that their fledgling is ready to grace the vampiric community, as a powerful member of their society. Why do the mentors go through such measures? Because, the mentor and fledgling are soulmates.