C177 No 4 Martial Arts Institute

"This is just one of the reasons the Nine Floors Tower is so beloved."

"Actually, the Nine Floors Tower's popularity stems from the rapid advancement people experience within it!"

"Is that so? What's the principle behind it?" Han Feng was genuinely astonished.

Lei Delie seemed troubled, as if the question had been bothering him for some time. After a pause, Lei Delie explained