Codename Green Blade: Espionage on an Isolated Island, 1941

His soul transmigrates into 1941, and he becomes a double agent.

With a System at his side and a fake wife as his partner, he walks a knife's edge.

The Military Statistics Bureau's interrogations grow ever more relentless, the Japanese and their puppet forces never stop hunting him, and traitors are watching everywhere.

Lu Yan knows that every step he takes is a gamble with his life.

But he also knows that in a time of chaos, only blood can serve the nation, and only a blade can cut through the darkness!

See how a mere scholar uses his System to dominate the world of espionage, carving a bloody path to the light on the isolated island of Shanghai!