Jiang Shuihan, a Chinese girl, is very talented and was admitted to the National Security Department of Renmin University of China at the age of twelve.
Both of his parents died when he was young (the reason for the sacrifice will not be spoiled here), and his adoptive parents were also police officers, so when he grew up, he chose to join the police (national security) to serve the country.
Due to family reasons, Liu Linglong's only friend when she was young (that is, You Tongran) was Liu Linglong. Liu Linglong had few good friends because she got along with "the girl without parents" Jiang Shuihan when she was young. Both of them had the experience of being ostracized, and their (adoptive) parents were devoted to public safety and had no time to take care of the children's interpersonal relationships. The two cherished each other.
Seventeen-year-old two people were sent to Japan on a secret lurking mission. When they were getting familiar with the environment before lurking, they met their half-brothers (who and what happened are detailed in the text, no spoilers). During the lurking, they also had partners and comrades who lived and died together, but some died before dawn, some betrayed their true feelings, and some only met again in the light of day.
At the age of twenty-seven, the organization was wiped out, and Jiang Shuihan also avenged his parents (through legal means).
Main CP: Kuroba Kaito·Jiang Shuihan
"The sound of gunshots is the wedding cannon, the blood is the red curtain, the smoke is just the fireworks, the poison is just the wedding wine, the sound of the bomb is just the fireworks, they love each other wantonly in the torrent of time.
Concept: The light that grows from darkness finally penetrates the darkness