Guang is a story about two brothers. The older brother Wen Guang is autistic and cannot focus or socialize with other people. Even so, his brother still tries to help him find a job. However, because of Wen Guang cannot focus, he fails again and again and even makes trouble, which make his brother angry and helpless. One day, his brother suddenly hears music coming from his room. The brother opens the door and realizes that he is shinning all along because of his music talent.