The Adventures of Koro Pilot Story

The story is set on the year 1450 in a world where humanity was a magic driven race, there where dragons and mages but most importantly there where demons and angels, the battle between the demonic household Valentaise and the angelic household Tormanis brings into it the human realm, our protagonist Koro must find his way through all living hell after he finds a fallen angel of war, Hiromi, and takes her in to his home.