Axel was a renowned assassin, known for his exceptional skill in wielding an axe. He had never failed to take down a target with his mighty weapon. One day, he was given a special mission by the notorious cult that had honed his assassination abilities. Little did he know, this mission would be his last. Despite successfully completing the assassination, his family was brutally attacked and murdered. Alone and consumed by despair, Axel awoke to find himself in a different dimension of Earth. The streets were empty, and almost everyone had vanished. Suddenly, a message appeared: Ding! [Welcome To The Underworld Games] [You Have Acquired The Chess System] In this new dimension, Axel and a few others were tasked with completing games provided by the system. The chess game was not played on a board, but rather with opponents representing the chess pieces. Failure in any game level meant the end, but victory promised unimaginable rewards. Axel was now faced with a new challenge, and the stakes had never been higher.