Just as former band lead singer Li Boyan hits rock bottom, the police inform him that he has a four-year-old daughter, Li Jinhe. With barely enough money to get by, he reluctantly takes the child in. Little Jinhe has suffered abuse and grown up sensitive, considerate, and excessively cautious. During their financially strained life together, Li Boyan gradually softens and takes responsibility for her. He becomes popular through livestream singing, unexpectedly wins a lottery worth tens of millions, and signs with a company to revive his musical dreams. Along the way, he breaks free from his exploitative birth family and confronts his former bandmate, Li Yuchen. While helping his daughter heal from her psychological trauma, he also searches for her biological mother. The once cynical and disheartened man sheds his restlessness, and father and daughter heal one another, becoming each other's most dependable source of comfort.