Liu Cheng, the leading actor, and Gui Lan, his girlfriend, try their best to support their seriously ill sister. On one occasion, Liu Cheng was arrested and imprisoned for stealing relief materials, such as taking money to rescue his sister and gangster Ma Saner. Sister died, and Liu Cheng was sentenced to three years' reeducation through labor.

After he was released from prison, Liu Cheng found an abandoned baby and a piece of luggage at the railway station, and a woman committed suicide lying on the tracks.

Go home; Liu Cheng reported the case and sent the baby away, but left the luggage without permission, and found the violin in the luggage.

In the street, Liu Cheng met Gui Lan, who was married, and was very sad. Liu Cheng sold the piano and had a big meal. When he paid the money, he found the photo in the piano box and two poems behind the photo, and his conscience found that he redeemed the piano. I stole a child from an orphanage, named Xiaochun Liu, and went to Xinchang, a mountain city in the south.

Thirteen years later, Koharu became a talented piano boy, and everyone in the town praised him. Father and son came to Beijing to take part in the competition, but they were careful and missed the competition. Koharu refuses to accept; Decided to stay in Beijing, took the lead and walked over and over again. Jiang, an unruly teacher in the Children's Palace, took Chun as an apprentice. Seeing Lily and Hui again, she was attracted by their beautiful relationship. Please play the piano for him. They became partners and earned money together.

Liu made a living in Koharu and was detained for questioning because he was found to be using counterfeit money. When he came out, he found that Koharu and others didn't go to the door to learn the piano. He was furious with Koharu with mixed feelings.

Lily and Koharu prepared for Hui's birthday, but Hui stood me up because she presided over the wedding.

I developed feelings with Mr. Jiang, and cooperated with Hui to play the piano at the wedding, making a lot of money. Koharu, who was gradually attracted by the world of flowers and flowers, gradually developed estrangement and contradiction with his father. Liu Cheng found that Koharu and Lily were unhappy together. She was afraid that Chun Xue would go bad, so she had an argument with Lily. Hui lent the house to him and his son.

Koharu learned about Mr. Jiang's life experience and felt sorry for him.

Hui was forced to pay her debts and stole Lily's car. Lily was secretly sad when she knew but didn't say it.

Koharu won the first prize in the new competition, and the famous professor Yu Shifeng wanted to take Koharu's piano as an apprentice. Liu became, and wanted to dismiss Mr. Jiang, so he fell in love with his father. He sold a piano and bought an expensive coat for Lily, but Hui borrowed flowers to offer a gift to the Buddha.

I came to Yu's home with an empty piano box. Liu Cheng was very upset and worried when he found it, and Koharu also had some regrets.

It turned out that Professor Yu decided that Chunxiang was the son of her late lover, and was determined to seize the custody of the child, making it a great success and laying a card for Liu Cheng. For the future of Chun Er, Liu Cheng gave in reluctantly. They are the apple of their eyes and students of Professor Yu, and they will compete for an opportunity to participate in international competitions.

At a poet's party, Hui thought it was his own son, so he went to Professor Yu for verification. When they clashed, Hui learned that it was his infidelity that made him sad and committed suicide. He was determined to take it back and fulfill his unfulfilled obligations. LinYu overheard the conversation and told Koharu. ...

How will Koharu choose between three fathers and one son? No matter how you choose, it is full of pain. 13-year-old Koharu will face the most difficult choice.