Renowned adventurer Adol “the Red” Christin and his companion Dogi arrive at Balduq, a city
annexed by the Romun Empire, only for Adol to be detained before setting foot inside. While
imprisoned, he meets a mysterious woman named Aprilis who turns him into a Monstrum, a
being with supernatural Gifts and the power to exorcise monsters. Now, Adol must ally with his
fellow Monstrums to fend off the fearsome threats emerging from a shadowy dimension called
the Grimwald Nox, as well as unravel the mysteries of the Monstrum curse, and the truth behind
the unrest within Balduq.