There were no guards between the fourth and fifth floors, only an alloy iron door blocking the way.
Si Long walked up to the alloy door and raised his hand, knocking on it in a rhythmic pattern.
With his exceptional hearing, Danheng could tell that every spot Si Long's fingers struck was different, as was the force behind each knock.
As Si Long knocked, faint mechanical sounds came from within the metal door.
After Si Long had knocked thirty-six times, the metal door immediately let out a creaking sound, like a mechanism turning.
Then, the door slowly opened, revealing the passage upstairs.
"Mister, please."
Si Long turned around and gestured for Danheng to proceed, though, like Si Cheng, his gaze could not help drifting toward Cloud Piercer.
Danheng had never imagined that one day, he would benefit from Cloud Piercer's prestige and have things made so convenient for him!
The moment he reached the fifth floor, Danheng heard the clanging of hammers striking iron.
Si Long quietly explained, "Si Cheng should have already introduced the situation on the fifth floor to you earlier, so I will not go into detail. Just follow me."
There were many forging rooms on the fifth floor, but only a few contained the sound of hammering. It seemed making a living as a blacksmith was not easy.
Si Long led Danheng to the innermost forging room, stood respectfully by the door, and raised his hand to knock.
"Who is it?"
A somewhat listless voice came from inside the forging room. Si Long glanced at the time, feeling a little awkward. It had only just passed the time when his teacher usually took his afternoon nap; the old man had probably just gotten up.
"Teacher, it's me, Si Long. There is a gentleman who wishes to