Kang Joo-hyuk once devoted his life to baseball, only to see his career collapse along with his damaged shoulder. With no clear future left, he is forced to reckon with the woman he blames for setting his life on that path. A chance encounter brings Seo Ha-eun back into his orbit. Old resentment quickly turns into a deliberate plan for revenge, pulling Joo-hyuk into a tense battle of pride, control, and unresolved history. As their lives become entangled again, his pursuit of payback begins to reshape the relationships around him in ways he never expected.