Lurking: Starting with Signing in Kingsman

Sioux City traveled through time. On the eve of the Anti-Japanese War, it became the secret chess of the underground party lurking in the Jinling Military Commission. The good news is: he is bound to the [Sign-in System]. Sign in at the training center and obtain [Combat Skills Mastery]; Sign in at the military command base to unlock [super powerful investigative reasoning]; Even when signing in at the dance, you can understand [micro-expression control]. The bad news is: he was listed as the number one suspect of the Japanese spy "Blowfish" when he arrived. The real spy was actually his brother Zhou Qian who fought alongside him. To prove my innocence and to climb up, Su Cheng took the initiative and used a secret letter as a certificate of surrender to join the army's ace - "Japanese Sixth" Zheng Yaoxian. From then on, he became a double agent: On the surface, he is the sharpest sword of Juntong Sixth Brother, who can uncover moles, solve assassinations, and instigate enemy agents to rebel. Even Mingtai, the "Pretender", is his junior brother; Secretly, he is the deepest thorn in the organization. He rescued Zhang Li from "Jingzhe" on the dance floor and single-handedly killed Japanese spy leader Yui Araki in the barber shop. Until that day, He signed in at the Shancheng Club, and the system suddenly prompted: [Multiple espionage world fusion detected, new mission released——] [Become the only chess player who runs through all the hidden lines.