Echo thought he had the perfect fresh start. Offered reincarnation into a world of swords and magic. Able to grow stronger by going on adventures. One quest gone wrong changed all of that. Lured into a trap by a sadistic, mad mage. Collapsing on the brink of death, he is captured. Subjected to the power of an artifact, reborn as a monster in human flesh. Killing other monsters, consuming their hearts, evolving - growing stronger from every foe devoured. Strong enough to survive. To get revenge. To devour even more.