Always wandering with her father Seol Dae Po, the Magpie. She finally arrives in Seoul, but from the beginning, it's chaos. Accidents happen one after another. However, despite the difficult circumstances, she doesn't lose her dreams and lives cheerfully. On the day she transfers schools, Ma Dong Tak, seeing a baseball thrown by chance by the Magpie, recognizes her extraordinary baseball talent and suggests she join the team, but she constantly avoids it. However, when Seol Dae Po, who admires Ms. Oh and is raising his sick daughter Dari, decides to settle down, the Magpie immediately joins the baseball team. Following Ma Dong Tak's advice, she dedicates herself to baseball diligently and passes the Seoul qualifiers. Meanwhile, her father remarries Ms. Oh, but the Magpie, unable to forget her biological mother, does not accept this. Her father goes abroad to cover the surgery costs for Dari, his new wife's daughter, and is separated from his family. The Magpie pulls herself together, reconciles with her stepmother, and, with Ma Dong Tak, leads the baseball team to victory.