A deeply addicted apprentice, Keanu Lee, was very fond of betting on sports comparisons, so that he often ran out of money and borrowed money everywhere, making his friends unbearable. In the end, his friends asked him to take a job or not to help him clean up-he wanted to become an enterprise-aided junior baseball coach. At the beginning, this group of kids were completely unable to enter the situation, and they were in constant pain. They did not know how to treat them, and they also created a lot of friction and isolation because of their family backgrounds. However, under the circumstances of being together every day, the interaction between them becomes more and more tacit, and it also makes them know each other better. On the other hand, what is even more attractive to Kang is the beauty of these kids, which makes Kang Kang more and more interested in this job, even giving him the greatest interest in his life. At the same time, Kang is convinced that these kids are invincible in the Little League, and their greatest goal is to win the championship.