How would you feel if a little cloud temporarily passed by to block the suffocating and irritating sun to let you cool down a bit? Because that’s exactly what Do Kyungsoo, a teenager who’s going through a rough time and sees the world turn against him, feels like when he meets his savior on the day of the accident before passing out. After he wakes up, he does “what any thankful and polite person would do ˮ; he goes searching for him. While he looks more serene after this tragedy, people around him are worried because of one thing: he is now mute.