When war reporter Fang Mingyuan wrote down his love for Su Xiaoyun in his diary, he thought he would be able to come back after the war was over. He never came back. Seventy years later, architect Lin Yu discovered this diary in an old house that was about to be demolished, and found Su Xiaoyun's granddaughter Su Xiaowan. Carrying a diary and twelve unopened letters, two people crossed the ocean to find an answer - one person had been waiting all his life, and why the other person did not come back. In a small town at the foot of the Alps, they found Fang Mingyuan's tomb and proof that love can last a lifetime.
