In the twenty-sixth year of the Republic of China, the country was in turmoil and warlords were separatist. Ye Chen was originally an ordinary dancer at Paramount in Shanghai. She came from a humble background, but she maintained a sense of love and justice in the troubled times. In an accident, she was involved in the power vortex of Xiao Zhenting, the Northland warlord, and was forced to become his "canary". Xiao Zhenting, known as the "Living King of Hell", has a large number of troops and is decisive in killing. He is the leader of the warlord that all forces want to get rid of quickly.
However, Ye Chen is not as weak as he appears. She was accidentally bound to the "memory exchange system", which allowed her to exchange a memory with the person she touched and gain one of the other person's skills. In order to survive and to find his missing brother, Ye Chen worked step by step beside Xiao Zhenting. She is a charming confidante during the day, and a thousand-faced agent who steals intelligence at night.
From Xiao Zhenting's memory, Ye Chen saw the cruel truth behind the warlords' melee, and also saw the unknown loneliness and struggle deep in his heart. With the exchange of memories, Ye Chen not only learned marksmanship, fighting, and tactics, but also gradually mastered the lifeblood of the entire Northland. When everyone thought she was just a plaything attached to the warlord, she had quietly weaved an intelligence network covering the entire Republic of China. In the end, she stood at the pinnacle of power, not to become another warlord, but to end the conflicts in this troubled world.
