He kicked the lock hard a few times, but to break open a security door through brute physical strength was simply impossible for Han Fei at his current level.
The iron door was unscathed, whereas Han Fei's leg had gone numb.
Without a key, he couldn't open the door, but Han Fei wasn't without any gains.
As he was frantically kicking the door, a pleading voice came from inside the room.
"It's all my fault, it's entirely my fault, please let me go, I beg you, please let me go!"
"Is there someone inside?" Just when Han Fei was about to give up, he regained hope upon hearing the voice, "We are the security guards from inside the building! You open the door first!"
"I will compensate you, whatever compensation you want, just don't come back again, I'm sorry, I'm sorry!"