Young Kwang is a second-string baseball player struggling to support his family. Seo In Woo is his lifelong rival, a first-string player and the son of a wealthy businessman. After both men are injured on the same day, they are rushed to the hospital and meet beautiful, bubbly nurse Yoon Jae In. Connecting over their lifelong struggles with poverty, Young Kwang and Jae In develop a strong connection, but a web of secrets about Jae In's past soon plagues their budding relationship, not to mention that In Woo is also after her heart. Will Jae In be able to find true love despite her complicated past?