The exceptional genius girl Im Seo-jin from Hwajoo High School. The top star of the baseball team, Ham Eun-young. Seo-jin, who ranks first in the entire school, looks down on Eun-young, who knows nothing but sports, while Eun-young finds Seo-jin, who knows nothing but studying, quite peculiar. There was no intersection in their relationship due to their vastly different environments and ideals. Moreover, Seo-jin merely scoffed at the frenzied cheers of her classmates for Eun-young. The passion for a short-haired, pretty boy-like girl was nothing more than a childish prank from her innocent childhood. Seo-jin regarded the immature feelings that would disappear after graduation as childish and became even more wary of Eun-young. However, when Eun-young discovered another expression on Seo-jin's cynical face, she boldly approached Seo-jin, and as Eun-young's bright demeanor shone through, the two gradually grew closer.