The Bittersweet plot
Xiao Ma is of part Chinese and part South Korean descent. He lived in a small village in China. His parents divorced and left him to his own devices when he was still young. His neighbor Old Xu who ran a childcare service took care of him. He called on his big sister Xiu Xiu to take care of these children. Xiao Ma was introverted and spoke little to the other children, who did not love him for this reason. The moments he spent with Xiu Xiu were the happiest in his life for him. But an accident that caused a fire caused them to be separated. However, a few years later, he meets the surgeon Miao Xuan in the hospital and believes she is the sister Xiu Xiu he has known in the past. But Miao Xuan continues to deny that...