
Okay guys i cannot seem to remember for the life of me. Who is this lady ???

Hee-seo's Aunt (his late mother's sister), he holds some resentment towards her because after his mom did what she did, his aunt didn't take him in and all this time later I think while he was still a teenager/young man she offered him comfort/to take care of him if he needed help and ofc he declined because of that but also now being with Mr. Cha
I wrote all of this for a recap on her from my memory

Okay but how does she manage to avoid the emperor's dominion??

She did say that although the emperor has the ability it's very weak, so it will make sense for someone who understands or knows about the ability to have the will and mindset to either overcome it or manipulate it. Like take for example someone with weak telekinesis, they'll only be able to yield a little with their abilities compared to someone with stronger telekinesis.
Ahhhh idk about anything else in the story but the angst is just ε=ε=(ノ≧∇≦)ノ. It's the only thing which keeps me reading the storyy