Spy: I Have a Team of Female Agents

[Spy war + establishing power + micro system + multiple female protagonists + independent development + lurking in the enemy camp. Gu Changan, a top killer, traveled through the anti-Japanese era in his soul, was bound to the attendant system, and worked as a small patrolman in the French Concession. But he used his followers and his own abilities to rise higher and higher, becoming the master of both black and white in Shanghai. He changed his identity, sneaked into the enemy camp, and relied on his female special agent team to rise to the top, so much so that if he didn't close the net, he would almost become the enemy's boss.