A wholesome romantic comedy between a baseball prodigy and a mediocre player! Ever since they first met seven years ago, Youngjun has spent most of his career comparing himself with Hyun, a star baseball prodigy. Youngjun’s own insecurities festered until he doubted Hyun’s kindness and has tried to push him away ever since. Just knowing Hyun has never been anything less than special was enough reason to be jealous. But, all this time, Youngjun hasn’t taken his eyes off Hyun and Hyun has always been there for him. After all, they are the Keystone Romantic Combination.