This is a story about how two injured souls find each other and heal each other in the vast sea of people. The male protagonist Gu Shen is an astrophysicist suffering from severe social phobia. He has closed himself in a lonely world due to childhood trauma and betrayal in academia. The female protagonist Su Nian is a piano graduate student who was once passionate but was shattered by reality. She fell into despair after losing her hearing in an accident. Two broken people, one used stars to teach her to listen to the heartbeat of the universe, and the other used musical notes to teach him to feel the temperature of the world.
