Ling Yue is a top international mercenary in the 23rd century, proficient in various weapons, fighting, tactical planning, intelligence theft, and battlefield medical treatment.
Due to a mission failure, Ling Yue, a daughter of a wealthy family, traveled to the Republic of China in parallel time and space.
Knowing the future development, she trained several agents to fight against Japan.
Codenamed "Poisonous Scorpion" returned from studying abroad in the United States, a reporter from the East Asia Daily said,
Codenamed "Black Snake", he returned from studying abroad in the United States and became a hospital doctor.
Codenamed "Blue Bird", he returned from studying abroad in Tokyo and became the owner of an izakaya.
Codenamed "Qingluan", he returned from studying abroad in Germany and is an expert in code deciphering, precision equipment design and blasting.
Codenamed "Red Moon", he returned from studying abroad in the UK. He is a master of close combat, cold weapons, and an expert in wilderness survival and tracking and anti-tracking.
Code-named "Suzaku" returned from studying abroad in the UK. He is good at high-level seduction, instigating rebellion, and using complex social networks to achieve his goals.
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Living in the French Concession and publicly identified as "upper class", they competed with "No. 76", The spy agency of the Japanese Military Police Headquarters, to collect Japanese military intelligence, and joined forces with Lu Sinian, an underground member of the Chinese Communist Party. They repeatedly took risks, but finally completed their mission.
