Luo Ziling rapidly inserted the needle into the old man's knee joint, and immediately gathered his qi, starting to manipulate the needle with three fingers at great speed.
After manipulating the needle for a while, the muscles around the old man's knee joint suddenly twitched.
Although the twitch was minor, Luo Ziling still noticed it.
The old man's eyebrows furrowed slightly, seemingly feeling pain, but he made no sound.
Luo Ziling took another needle and with the same technique, inserted it into another acupoint in the knee joint area, then continued to manipulate the needle in the same manner.
The muscles around the old man's knee joint twitched again, slightly more noticeably than before.
Lin Lan had been watching Luo Ziling closely; seeing a hint of joy on his face, she couldn't help but breathe a sigh of relief.
The old man lay with his eyes half-closed, motionless as Luo Ziling punctured his skin with needles.
