Espionage: The Days I Slacked Off at the Military Statistics Bureau

We live in a peaceful era, but how many nameless heroes sacrificed their lives for this country and its people?

History books are too thin to contain their greatness. Turn a page, and you've got their whole lives!

History books are also too thick. We can't remember their names; we only know that they are heroes!

He transmigrates through time to China during the War of Resistance Against Japan and takes the place of the original owner.

Following his elders' arrangements, he joins the Juntong as an agent.

On the surface, he's a carefree playboy, a good-for-nothing who lives for wine, women, wealth, and status. In truth, he is steadfast in his convictions and highly capable.

He takes on many different roles: a young gang boss, a Juntong agent, an interpreter at the police station, a special agent for the Tokko, a ninja in the Black Dragon Society, an imperial bodyguard...

From the mountain city to the foreign concessions' ten-mile oceanfront, from the White Mountains and Black Waters to dense jungles, he never forgets his original purpose or his mission. He vows to make the invaders pay in blood!