Iron Body from the Start, and Before Long I’m Invincible

Qin Feng transmigrates to a low-martial world and becomes a servant in the Qingyun Sect, someone anyone can bully.

He plans to keep his head down and grow stronger, but unexpectedly awakens a cultivation technique upgrade System.

He casually practices the lowest-grade Iron Shirt, and after upgrading it, it becomes the Divine Domain's clan-suppressing technique, Indestructible Golden Body!

The Stone-Shattering Fist that everyone looks down on becomes the Seven Kills Fist, capable of destroying all magic, after a few upgrades!

At the sect tournament, everyone mocks him for knowing nothing but how to take a beating.

Qin Feng smiles without moving. “I'll stand here and let you hit me. If I move, I lose.”

Only when he looks up does he realize that he's nearly upgraded every cultivation manual in the entire world to its limit...