Xin Tang has the ability to create happiness for others through sound, but after using it three times on the same person, his life will be bound to that person. Only when the other party is happy can Xin Tang survive. Incidentally, Xin Tang rescued the school internet celebrity Ji Ze, who was about to commit suicide, and the two bound together. (Sources: MyDramaList) ~~ Adapted from the short story "If the Voice Cannot Be Remembered” (如果声音不记得) included in the short story collection "Those Warm and Beautiful Things in Life” (那些生命中温暖而美好的事情) by Luo Luo (落落).