War of Resistance Espionage: I Guard the Homeland with a Time Gate

[Dual-world travel + turning everything over to the state + no female lead + espionage and strategic mind games + honoring fallen heroes + righting historical wrongs] Shen Lian, a modern-day instructor, accidentally opens a portal to Shanghai in 1939. From the start, he is surrounded by enemies and pushed to the brink of death! The undercover heroes who died with regrets in history, the secret safe houses endangered by informers: this time, Shen Lian and the power of the future will change their fate!

Shen Lian: “Our predecessors, you gave your lives in the darkness to protect the future. Today, the future arrives bearing light, giving you the power to destroy the darkness and defend our country!”