Traveling back to Shanghai in 1926, Song Jin's only source of confidence was Su Wan by her side. She is a history graduate student who is familiar with the history of the Republic of China. She knows all the trends of this troubled era, but when she saw a girl selling her body to bury her father on the roadside, she understood the weight of history for the first time. She was a timid female student who was harassed by her professor. She was trembling with fear in a strange and troubled world, but when Song Jin was about to break into the dragon's den and the tiger's den, she always stood up and said "I will accompany you." They are each other's only anchor in troubled times. She gave her the courage to resist, and she gave her a soft undertone. Together they stalked in the dark alleys of Xiafei Road, together they broke the lock of the archives room, together they sent home the girl who had been imprisoned for thirteen years, and together they remembered the names crushed by history. They cannot change the direction of history, but they can change the fate of individual people. In the troubled times, they held each other's hands tightly. Wherever you want to go, I will accompany you. The person you want to remember, I will remember with you.