In a world defined solely by strength, Devon's family is undeniably amongst the strongest. His father is an SSS rank Blademaster capable of taming SS rank beasts. Devon's brother Kisho is an SS rank Archer, capable of taming SSS rank beasts. Devon himself isn't even F rank. He can't even tame a slime. “You're so weak we can't even rank you!” His father shouted as he devoured him, relishing in Devon's cries of pain as he ate his own son. Reincarnated as a servant in a rival family's house, Devon finds that he's been revived with an SSS rank skill: Corruption. With this skill, he not only tames beasts but corrupts them, bending them to his very will. Naturally, this leads him to grow to be one of the strongest tamers in the land. Perfect for revenge. As Devon sets out to kill his father, he finds that this second chance is both a gift and a curse.