"Amazing," Lu Zhen muttered, his eyes widened. Although he broke the sound barrier, it couldn't do much harm to him at all, only being able to cause some scratches.
"Young master, are you fine?" Little Lily's voice sounded dragged and weary, as if she was exhausted.
"Yes, I am fine, but what happened to you?" Lu Zhen said with shock.
The strange pattern in her eyes disappeared as she fell to the floor, taking deep breaths.
"What happened?"
Lu Zhen quickly checked Lily, which made him heave a sigh of relief. She was only in this condition because she had lost too much Qi.
"Does the formation drain so much Qi?" Lu Zhen said with shock.
"Yes, young master, it drained too much of my Qi."
Lu Zhen, without delay, fed her some paste that helped in recovering Qi.
"You have to be careful with your body, Lily."
"Yes, young master."
"Does it have a formation that is helpful for an army?"