Omega?

THIS IS A MIKA X YUU FANFIC HOWEVER IT'S NOT MY OG IDEA!!
I DON'T OWN ANY OF THE CHARACTERS!!

This is placed in a world where vampires control over humans peacefully.
Mika is a hold hearted protective king. He's been waiting for his mate for many years.
Each year the third years of high school get their assigned role (Alpha, beta, or omega) Omegas haven't been seen in a very long time. Mika is loosing hope; will he ever find his soulmate?

NO SMUT BUT LOTS OF FLUFF, POSSESSIVENESS, ETC!!