The film tells the touching story of Yin Lingzhi, a young girl from a mountain village who experienced the severe test of the War of Resistance Against Japanese Aggression and the War of Liberation, and eventually grew into a staunch communist fighter and sacrificed her life for it.
Qin Fen, a funny, honest, single inventor, met a girl called Smiley, who was in agony of her boyfriend's betrayal. They traveled to Hokkaido, tried to help Smiley cure her pain in heart, and both of them gradually found their true love and life redemption during the journey.