You pick dragon, my cat becomes god. Your business how? — Episode 2

Betrayed, abandoned, and cast out at his own summoning ceremony: Evan Vance is left with only an F-rank Shadow Cat until the Divine Tamer System awakens. What everyone deems trash evolves into a god-tier Devouring Beast, crushing city-destroyers and surpassing the legendary Void Devourer. Meanwhile, alleged genius Iris Moore has no clue that the man she ditched has left destruction behind and is ascending to godhood.