- Tags: Romance of the Republic of China, deep love in troubled times, espionage, auditory powers, intelligence transmission, family and country justice, Tianjin Concession
- Introduction: In the Tianjin Concession in 1939, under the iron heel of the Japanese army, undercurrents surged. Renxin Hospital nurse [Su Wan], who was born with enhanced hearing and can hear whispers within 100 meters, accidentally intercepted information on the Japanese military arsenal, and was developed into an intelligence agent by the underground party leader [Shen Yanzhi] (manager of Huitong Yangxing Bank). In the concession, cheongsams are wrapped in blood, rickshaws hide secret messages, and the sirens of the patrol house are intertwined with the pursuit of the Japanese military's special high school class [Kenichi Matsui]. Su Wan used her identity as a nurse to travel through the ward to obtain information, and Shen Yanzhi used the cover of a foreign company to deliver the news. The two of them passed on key information on the verge of life and death, and finally assisted the Eighth Route Army in destroying the Japanese arsenal, using their meager efforts to protect the country in troubled times.