In this world vampires have eternal youth after they hit 25 and they also have a sense...to know who their soulmate is...Kairo is the vampire prince. he's been searching for his soulmate and...he ended up going to the human world...he drinks animal blood while there...once he finally finds his soulmate...he won't let them go, he'll keep them by his side, forever. he'll turn them into a vampire later. He won't force them into doing anything, other then being his and being a vampire, but that's it