"I will go on living. With this man's heart, that beat the rhythm of Andante." Da-ul was diagnosed with Dilated Cardiomyopathy at the age of 12. Four years later, a donor who will give Da-ul a new heart appears. Da-ul, who has received a new lease on life from the brink of death, and Yeon-jo, who is drifting away from the path of life after devastating losses. This is the story of a dead pianist who comforts these two living people.