Food Reviewer of Monster Cuisine from Another World

The only son of a poor peasant family left his hometown alone after his father died and came to a small town on the border of the kingdom to become an adventurer. With good luck, he accidentally used a "combat skill" inherited from his family to kill all the low-level adventurers, and he made great progress and eventually became a big shot. ——This was the last fantasy of the original Rocky before he was beaten to death.