Li Fei's head had gotten big. "Is there such a complex path inside the slingshot?"
"Of course, if it weren't complex, someone would have rescued me long ago."
"Alright, I have nothing else to do these days, just training until I'm dead tired."
"That's nothing. Those masters stay in seclusion for years and years. What you're practicing is just the basics, it only impresses ordinary people."
"You should go to sleep, I need to practice that darn 'Iron Tower Formulas.'"
Li Fei was actually a bit puzzled why it wasn't called the 'Copper Tower Technique' or 'Aluminum Tower Technique.' After searching through his mind, he finally found a worn-out ancient book among a vast array of martial arts secrets. The cover had three conspicuous black characters: Iron Tower Formulas!