Life is like a winding, rising and falling melody. Who is the main theme in your song, and who is just an insignificant little note? After her friend Zhou Xiaodong dies, Guan Heng, a girl with extraordinary musical talent, takes part in a singing competition and meets Li Mo, a bridge designer who had been on Zhou Xiaodong’s mind before her death. In Li Mo’s eyes, everyone, himself included, is just a little note. He seems gentle and modest in the way he treats others, but in truth he is cold-hearted. He never toys with life, but he never takes it seriously, either. Guan Heng accidentally becomes the main theme of his life. First, he owes Zhou Xiaodong a debt of gratitude, and Guan Heng was the most important person to her. Second, he simply cannot understand how someone like Guan Heng can exist: she has extraordinary musical talent, yet in everyday life she’s stubbornly single-minded, clumsy, and foolish, letting others bully and take advantage of her without even trying to avoid it... Fate arranged for us to meet among countless people. I love you with every last bit of my life...