"Lu Mian, are we really doing this?"
Zhuang Shen held a spiked mace, looking somewhat hesitant.
Even with his strength, he found the mace rather unwieldy.
What was more, the densely packed iron spikes covering it made his scalp prickle.
If this struck an ordinary person, it would surely punch countless holes into them and send blood spraying everywhere.
"Yes, don't be afraid, everyone!"
"This body of mine is tough. Just hit me with all your strength."
"Treat me like your sworn enemy!"
Lu Mian grinned.
Over the past month, he had already cultivated Iron Shirt to major mastery.
At this stage, he had tempered the muscles and tendons throughout his body until they were as tough as an iron garment, giving him tremendous resistance to blows.
Now, Lu Mian was seeking even more intense stimulation to push Iron Shirt to perfection.
Steel was forged through repeated tempering.
Once Iron Shirt reached perfection, every muscle in his body would become as hard as steel!
"All right!"
"Then let's not hold back!"
Zhuang Shen nodded.
His words were also directed at the bearded man and the others.
"Begin!"
Lu Mian took a deep breath.
His muscles swelled as though inflated, their contours becoming sharply defined.
With low roars, Zhuang Shen and the others swung their spiked maces at Lu Mian.
Thud, thud, thud!
They truly struck hard, holding nothing back.
When the maces struck Lu Mian's muscles, they produced a sound like metal clashing against metal.
Lu Mian stood his ground without moving an inch.
His back, chest, legs, and arms were being hammered relentlessly.
Zhuang Shen and the others kept striking him for an entire incense stick's worth of time, until they were drenched in sweat.
"I can't...!"
Zhuang Shen was the first to drop his mace.
He had put