I’m Really Not a Tech Mogul

"General, Blue Star is only a Level 0.7 technological civilization. I'll take a small squad there and wipe them out!" The alien major spoke to the old general before him.

"Major, have you ever seen a civilization reach this level in just over 200 years?" the old general asked calmly, looking at the major.

"General, this..."

"We've been deceived. Withdraw the troops!" the general said in a low voice.

"Yes, General!"

On Pluto, Qin Lu, clad in red armor, watched the fleet retreat with a faint smile and murmured, "You were lucky to get away!"

This is the story of a protagonist who is reborn before the spiritual qi revival, develops technology, and then resists (bullies) the aliens!