C122 Hurry up and Come to the Rooftop of Zecheng Building!

The Xuan Men tradition boasts twelve needles of four lengths: one inch, three inches, five inches, and seven inches, with three needles of each size.

Lin Yin, with a flick of his wrist, expertly arranged the needles and administered twelve of them to Old Master Qi, gently tapping each one into specific acupuncture points.

Next, Lin Yin grasped Old Master Qi's wrist