The woman shook her head as if all hope had vanished. "You can't escape. The lock on the door is made of dark iron, which ordinary blades simply cannot break. Besides, Hongyan Pavilion is a massive brothel with guards everywhere. Even if you made it through this door, you'd never get out of the building."
Yun Li walked over to the door and gave it a gentle tug. It opened just a crack. She reached out, touched the lock, and examined it closely. It was indeed made of dark iron. Dark iron was the hardest of metals, an essential ingredient when forging top-tier swords—only by adding it could a blade be rendered truly unbreakable.
A faint smile touched the corner of Yun Li's lips. Ordinary swords might not be able to break it, but she possessed an extraordinary one. The Fenghua Sword would surely shatter it; she just needed to carefully plan how to make her escape.
Chapter 164