The theme is time travel, and it tells the story of a young man in his early 20s (male, with a difficult family background, who worked in various places after dropping out of middle school. His only pleasure was the FPS game Cross Fire, and he has good strength). He is a rising star in the FPS game Cross Fire. He has achieved excellent results (individual MVP) in the Hundred Cities League of a certain city. As the game It tells the story of a wealthy boss of a club who wanted to sign a contract with him. On the way to sign a contract after the White City League game, he was assassinated by an opponent in the game and lost his life. With unwillingness to regain his life, he returned to before the accident. After experiencing various emergencies (life-threatening), he completed the contract, shined in the professional arena and found the murderer who assassinated him.
