What do you think on Chung-Eun's character?? We all know that their relationship is not he...

From the beginning we can see she's not fine in her mind.
I can't remember what's number is it but the chapter when Yumi and Sunhwa were arguing, we can see a double reflection of Cheung-Un in the miroir.
She is obsessed with Yumi because for her, it's her savior, she's can't leave her because she's her everything.
For me, Cheung-Un is a very interesting and complex character, that's why I love her and I don't think Yumi would leave Cheung-Un too, she looks like to be really attracted to her

Yeah your right. She is surely obssessed with her... Do you think it will affect her character to thier relationship?? Or maybe yumi got some twisted mind too that make them suit to each other?? (︶︿︶)

I mean it will affect their relationship?? Sorry for the typo

First of all, I think the arrival of Hayeon is likely to create a lot of tension.
I think she will try to make "fun" on Chung-Un, she even asked Sunhwa if Cheung-Un was mentally unstable.
I think her jealousy may make her very distant or extremely possessive.
I don't think Yumi is going to give it up with Cheung-Un because right now, we get to see her deep attachment for her.
Maybe she will try to help her? Like I said previously, Cheung-Un is really interesting and her story is still mysterious actually, remember the conversation with Ms.Choi and the oldest sister of one bully girl about the mother of Cheung-Un.
So many puzzles to solve in Birdcage.
All the mystery is there, the story has a lot to give

That makes sense.. But i have some theory.. Remember when her Chung-Un best friend saw the laugage of hayeon there some paper about the missing genius.. Think she's looking for that... And remember how she said to yumi about the picture of her girlfriend... Maybe she's looking for her..