Eunhyuk is in a rush and doesn't take care, and a car is about to hit him when a red-haired guy appears from nowhere and saves his life, risking his own. Later, they get to know each other well, and Eunhyuk finds himself falling for his savior, while he still feels guilty for him getting injured seriously when saving him, though his savior doesn't blame him at all. What kind of relation will evolve between them?