C466 Sixteen true symbol

"How many times can you use this kind of Imperial Technique?"

Qin Lie muttered to himself for a while, then slowly said: "Within a day, you can at most use it three times, and within half a year, you can only cultivate five Throwing Knife."

"Three times a day?"

Ao Kun muttered. His expression was suddenly a little strange, a bit surprised, but also a bit relieved