Beast Taming: From the Start with Just a Dog, I Rule the World

In the apocalypse, demonic energy returns, and despite having the strongest talent, I contract with my own dog. No one believes in me or wants to train me? No problem, I have the System. Mock me and laugh at me, and try to lord it over me? Sorry, you’ll have to taste my slap first. You may be able to hold me down today, but one day I’ll trample you beneath my feet.