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 five grandpas were busy vomiting, they indeed couldn't summon any strength and their legs felt soft.

After being beaten up by Xu Cheng, they pointed at Xu Cheng and shamelessly said, "How dare you! You shameless brat!"

"I don't know what you guys are saying." Xu Cheng played dumb and kept on hitting them.

Elder Ye wanted to attack him from behind, but Xu Cheng landed a back kick on him, he glared right back. "I'm your grandpa, how dare you hit me!"

"I drank too much, what are you talking about?" Xu Cheng jumped over and began treating him with another barrage of punches.

When the other four elders finally recovered a bit of their strength, they roared and attacked at Xu Cheng at the same time.

Xu Cheng just stood there, suddenly revealing a sly smile at them.

Not knowing why, the five elders all felt something incredibly eerie when they saw that smile.

I Finally Get How My Teacher Felt