Shen Qingci retired from the army for three years due to psychological trauma and opened a teahouse in a small town in Jiangnan to heal his injuries. One night, she received an urgent secret message: Her closest comrade-in-arms and ex-boyfriend Lu Chenzhou was captured during an overseas operation. The intelligence showed that the enemy commander "Night Owl" intended to use him for biochemical experiments. Shen Qingci violated the ban and sneaked into the war-torn country "Casania" alone, and found that Lu Chenzhou had been transferred to an underground laboratory. In order to obtain information, she disguised herself as a war reporter and approached "Night Owl" - her true identity was Ilya, the son of the Kasanian warlord. The two developed a fatal attraction while testing each other, and Shen Qingci discovered that Ilya was not a pure war maniac, but wanted to use extreme means to end the country's century-old civil war. When Shen Qingci rescued Lu Chenzhou, Ilia set a trap and asked her to choose between "taking away her comrades" or "staying to prevent the spread of biological and chemical weapons." Shen Qingci blew up the laboratory and fell into the abyss with Ilya, but found a third way in the ruins: to join forces to expose the real mastermind behind the scenes - a transnational arms group.