Destiny is always intertwined with too much sorrow and joy. When you are soaked in sorrow, there may be gentle hands to comfort you. When you regain confidence and strive to be happy, the unknown darkness may be approaching you. Qin Le, who once thought he would live an ordinary life without any trouble, seemed to be unable to escape all kinds of joys and sorrows. Will his innocent dreams be washed away by the ups and downs in such a society? Will those hands that just want to jump on the black and white keys always be what they want? Can young love be taken seriously? Will the infatuated gaze have any results? How to deal with the entanglements behind the scenes? The unknown life under the piano, the confused music will slowly play along with Qin music, along with the complicated society and campus.