Moriya Keiichi

A student who lives in Yokohama. A clumsy but gentle young man.
While feeling some anxiety about the future, he's living a quiet student life.

Hates vampires because his parents were killed by vampires when he was little.

After a car accident he miraculously recovered because of a new medicine, given to him by Aoi Setsuna. But because of its side effects his attribute changed from Beta to Omega.

Attribute: Beta → Omega (β → Ω)