Animeexorcist hikaye

A young freshmen named Kasuka Azumi was an Exorcist, but in the world he lived in didn't make sense and didn't know that there were more Exorcist. Kasuka's Exorcist type is Gleaming White Dragon. He may not know everything and and everyone but his lady friend so called Saki Shinzuka is a Red Gleaming Exorcist. Will they find out more?