Lin Zhixia is a sophomore transfer student in high school, taciturn but keenly observant. Because his father was transferred from the south to the north, he wears headphones all year round to isolate himself from the noise. She was once a talented girl in the middle school attached to the Conservatory of Music. She gave up playing the piano due to an accident. She has a tough personality but is afraid of being watched. Her existence is an emotional anchor for the male protagonist Lin Shiyu, and it is also an opportunity for him to regain his music dream.