Genju No Seiza Vol 8

Genju no Seiza by Matsuri Akino. A Fantasy manga rated Older Teen, published in English by Tokyopop.

A teenage boy with a sixth sense for people's auras has just transferred to a new school when Garuda, a guardian beast who is half man and half bird, appears and declares him the true heir to the throne of Darashaal. He wants nothing to do with becoming its Holy King, but more guardian beasts and supernatural forces soon find their way to him. A mystical fantasy from Matsuri Akino, creator of Pet Shop of Horrors.