In the web novel 'A Champion of Rats,' also known as 'The Ratling Champion' and '쥐쟁이 챔피언,' readers delve into a world where the protagonist takes on the role of a monster rat to earn money through playing games. Originally written in Korean, this action-packed fantasy tale falls under the mature genre, exploring themes of cannibalism, demi-humans, and strength-based social hierarchies. With elements of gods, gore, and transported into a game world, this story follows the journey of a humanoid protagonist with special abilities, navigating a world where weak characters evolve into formidable forces.