dogo

I’m pretty sure this is a romance manga.(can’t remember if it’s Korean or Japanese) The world setting, there are people who live underneath and people who live above. People who are living under are poor people and people that don’t have power. Looked down upon. While the higher are more well off and have status. The girl falls in love with her childhood best friend. Years past and when they grow up, the best friend kills her parents, has an underground war, and takes a portal to the world above. Leaving some people still down there, (Mc included). Years pass and she learns magic?(I believe) and she becomes high status because of this allowing her to live on the top. That’s all i remember.

I read this horror like manga, I’m not entirely sure if it was (Japanese, Korean or Chinese manga)
But the plot follows this girl who lives with “sisters” or other young girls (in their 20s, not too young). And the main girl realizes that something creepy or corrupted is happening in the mansion. So she’s investigating. One scenario that I really remember is, she’s in a forest and the other sisters are “evil/possessed?” surrounding her in a circle, eventually she runs away. I also remember her looking into a mirror/painting (in the mansion) and an evil girl looking back at her. They were also dressed like in the old days, with dresses. This is just what I remember off the top of my head but some things may be scuffed since I read this in like 2013 ish. This manga I read was an actual book so I don’t know if anyone has put it online, just wondering if anyone has any ideas.