Once upon a time there lived a champion of gladiatorial combat. No, not from Rome and not from the past. The main character was a fighter from another world. A world where arena battles are commonplace. Where insolent people get, if not everything from life, then more than those who were good-natured. He was the most ordinary impudent, and overall, a preoccupied asshole. And then at one of the tournaments the main character... Honestly lost? No, no again. He was poisoned because there was a huge betting odds on his loss. That's how he died. But the strong soul of the champion did not disappear into oblivion and did not dissolve into the abyss. By chance or not, in another world, a young schoolboy dies from being beaten by his classmates. And his last desire was revenge. This is a story about a champion who ended up in the body of a schoolboy from another world. A world where magic and martial arts exist.