First, he traveled through time and became a cat. He finally got a human body, but he turned out to be a completely useless fat man. Counterattack? Well, not only is it a counterattack in terms of strength, but also in terms of body shape...
Of course, don't worry, whether it's a cat or a fat man, after all, it's just the beginning of the story. Our protagonist must be a being who is not the most handsome but the sluttiest, not the strongest but the meanest.
