C2109 To Sharpen the Spear During the Battle

The seventh move should be the strongest move in the Seven Killing Sword, and it should also be the strongest. However, what I didn't expect was that using this move would also require the use of Yin and Yang inner force. This was exactly the same as when a Top Level Pharmacist made medicine.

I had just broken through to the Top Level Pharmacist, so I could use two inner forces in my body