I will start now

They proceeded to have their meal, and as it was done, he taught her about the way to control Yin Qi, as well as some basic knowledge about Extreme Yin Qi she had and how it was different from normal Yin Qi.

She digested that information as he patiently taught her step by step what he knew. He could only be happy about her relatively high level of comprehension, as the teaching would slow down if she did not have it. She was quite talented in cultivation as well, more so than most people he met thus far as she reached the Revolving Qi Realm at the age slightly older than Luo Mingyu. Her physique then covered it with a slightly less but still impressive Qi Manifestation Realm. This was the reason she was highly valued by the secret guard and was accepted, then taught, despite the fake lack of combat knowledge and naivety.