Oh my god, perfect kitty — Episode 15

Wronged and expelled at his summoning ceremony, Evan Vance is left with an F-Rank Shadow Cat until his Divine Tamer System awakens. What others called trash evolves into a God-level Devouring Beast, obliterating City-Destroyers and surpassing the legendary Void Devourer. Meanwhile, the supposed genius Iris Moore has no idea the man she abandoned has transcended destruction... and is on his way to becoming a god.