Dust Wind

There’s SIS in great Britain, CIA in the US. In Huaxia, there’s Dragon Division, known as the mysterious power of the East.
When a soldier that originally failed to be selected to join, appeared on the Dragon Division’s list again, no one noticed, that this inconspicuous and humble-looking guy was actually the Dragon King of the division, the one that’s most difficult to deal with.
Mercenary: “Report, our squad is under attack, suffering heavy casualties!”
Commander: “How many enemies are out there?”
Mercenary: “Just… just one! There’s a joker card in his hand.”
HQ: “What?! Hurry, retreat!”

Ace of The Dragon Division

The old man waved his hand. "No rush, just sit down. I have something to say first."

Xu Cheng then sat down and looked at him.

The old man also looked at Xu Cheng and said in all seriousness, "Do you understand the nature of the Dragon Division?"

Xu Cheng went a bit blank. "Not really, but is it different than being a spy or special agent working for the country?"

"Of course, a big difference." The old man said, "Spies and special agents are part of national security, but they are at most regarded as the country's ears and eyes. As for the Dragon Division, it's the nation's shield and spear. It doesn't belong to any department and is fully independent, putting it above the entire police system. There will be blood with every operation, and it can be said that this organization's the guardian of the nation. Do you know the meaning of a guardian?"

I Believe He Will Come