Global Killing: I'm Really No Savior

In 2050, the law of darkness came to Blue Star. On the last day of every month, everyone is forcibly taken into the Dark Arena. In the arena, there is no love between children, only the winner is king. If you want to survive, you must do whatever it takes and use blood as a sacrifice! Welcome to the dark world! [Main mission: In the next twenty-four hours, please sacrifice a life. [Side mission: Every time you sacrifice a life with your own hands, you will be rewarded with points. [If the main mission fails, everyone will be liquidated! [One minute later, the game officially starts! [The final winner will receive the rules reward...] However, five years passed. People were surprised to find that what was more terrifying than the killing was that the final winners were all the same person. "Is there any mistake? Every time he starts, he completes the task?" "How did he kill a hundred people in an instant?" "I want to report someone cheating!" "Codenamed Savior, could he be..."