When Rin Na made her debut in pro baseball, she immediately became the most promising rookie in the league. But when she failed to meet everyone’s expectations, her rising star fell and was forgotten. With many regrets in her heart, Rin could only watch as her former teammates continued their successful careers. Her dream was over. But one night, a mysterious man suddenly challenges her to start her career again by sending her back in time. Will Rin’s life be a home run this time?