In the 22nd year of the Republic of China, Jinling was in turmoil. The Chinese world and the concession were intertwined. Old and new trends of thought collided. Women faced difficulties every step of the way. Twenty-five-year-old Su Yanhan is a rare female forensic doctor in the concession. She was born in a scholarly family in the south of the Yangtze River but broke up with her family. She uses corpses to find out the truth, with frost on her fingertips. She lives alone in a small foreign-style building with cold cases as her company; 21-year-old Song Zhaoning is a Chinese language teacher at the Huajie Women's School and the daughter of an official in Peking.
Being distant relatives since they were young makes the two people who reunited become each other's exceptions. Song Zhaoning held the sweet-scented osmanthus cake and melted Su Yanhan's indifference with his bright voice; Su Yanhan held the scalpel and used his lonely courage as Song Zhaoning's armor.
There are strange things going on in the school, unsolved cases in the concession, and evil gentry and foreigners colluding to do evil. They are hot and cold, and they work together to find the truth. Not afraid of the criticism of the world, not afraid of the gloom of troubled times, the cold inkstone reflects the bright light, and the cold stone dwells on the warm star. Two women of the Republic of China redeemed each other in the wind and rain. In their own names, they guarded each other, justice, and the stability of the fireworks.
