We follow the story of a math teacher named James Cooper who is in his forties and has a passion for football. Despite not being skilled enough to pursue a career in the sport, James still loves the game and spends much of his free time playing and strategizing. However, his job and relationship struggles have prevented him from pursuing his dream of becoming a football coach. One night, after playing football with his friends, James finds himself caught in a fight that ends up taking his life. But instead of finding himself in the afterlife, James wakes up as an 18-year-old again, just a few days after he left the football academy. To his surprise, he also discovers that he now has a system related to football manager. With a second chance at life and the ability to live out his passion, James must navigate the challenges of youth once again and balance his love for football with the responsibilities of his new life.