First Meeting:

She first met him in a variety show. She saw him dancing a trot dance to a cool song. It made her laugh, of course, but then again she felt admiration with a tint of envy towards him. When he started singing, she was also mesmerized by his unique voice. She finds him very very funny and probably laughed a whole lot in that vareity show because of him. When the shooting ended, she approached him. When he noticed her, she immediately flashed out her brightest smile and said, "I really admire you!"  

On going relationship:

He does feel a bit awkward around her due to her confession of admiring him. Of course, he knows that she meant his skills because she keep bothering him to teach her how to dance, sing and be funny. He usually sees her as Dongwoo's sister since she and Dongwoo are quite similar so he can get comfortable with her. She instead is just happy to be near him. She really really admires him up to the point where her admiration might turn into love. Whenever he makes skinship with her while teaching her how to dance, she would smile widely, making him really confused.  Whenever Sung Yeol gets near other girls, she would start getting all pouty and whiny and would demand for his attention. This side of her might make him a bit annoyed. Even though there are times he tells the stubborn girl to leave him alone for a while, he can't deny the fact that he actually does enjoy her company. Due to her clumsiness, he would always get pulled into trouble. This made him feel quite protective towards her. He kind of got used to saving her from falling or doing something stupid so if one day she's not bothering him, he would feel all weird. It's like when he's with her, he wants to be alone but when he's alone, he wants to be with her. 

When she was small, her dad died. Since then, she started living a life with unfair treatment. Chinese families usually care only for boys instead of girls, she is always advised to learn from her brother despite how good she is by her mother. She really wanted be on stage singing, but her mom forbids her to do that since her mom absolutely despised singers. One day, she took the courage to tell her mother about going to an audition after getting some words of encouragement from her best friend. Despite finally achieving her dream, she can't help but feel sad when her mom's not there.  Due to not being so active before she went auditioning, she had quite a hard time learning to dance. She would feel really useless and bet that her brother can do it. Ssinging and rapping are no problem for her. Though, she can't deny that she felt weird when rapping. She really did strive hard during the 5 years of training. She once even overworked herself to the point where she almost had a gastric. She did receive moral support from the phone calls of her bestfriend and some other trainees so she wasn't really that miserable being a trainee. She did get a bit home sick but doesn't admit it.

She's a bit well, weird. She's quite weird to the point where you can say that she's a 4D girl. Well, if she doesn't open and stay there quietly, she doesn't look weird at all. But believe me, when she opens she speaks the  most random and weird things anyone would think about. She loves spacing out as well, so she usually doesn't hear what you say.  She's quite clumsy as well, making her fall sometimes on live concert or vareity shows. She hates it though, she wants to be perfect, she really do. She longes to be like her brother, perfect in academic, talent and almost everything!  But it seems that no matter what she does she can't be as perfect as her brother. She's not a girl that is scared to ruin her image so she usually does crazy stuffs. Despite that, her senses are quite good. So when you are trying to do a hidden-camera on her, she would find out about it but continues to act clueless but surprise them back.

She loves laughing that you can even say that it's a habit. She laughs at the weirdest things so most people don't understand her humour. She is quite the cheerful and mischievous one in the group, despite not being the maknae. She loves playing pranks on the members. In the dorm, she is usually the hardest to wake up, even if you kick her, she won't wake up. She don't do well with dogs, she would probably be the one who would stay away from it the most since she has an allergy on dogs. She loves mystery and horror movies, which make her the one that loves adventuring and exploring. She doesn't give up easily when she has her eyes set on something and would continue to work hard like the stubborn girl she is. She doesn't do well on first meeting and would accidentally do something stupid like splashing water on the person. Well, she's a really nice girl when you get to know her.

But be warned, when you get closer to her, she might make you crazy at her randomness. She would get more cheerful and bubbly around you, possibly to the point where you can describe that as 'clingy'. She is a very honest girl, she would never think of lying unless it's necessary. She would be very honest of her feelings and say out loud how she feels. She isn't really one to get embarassed easily since she can be quite slow and dumb. So actually, when you throw an insult at her she wouldn't get it at first but after a few seconds she would be like, 'Yah! What did you say?!' Her reactions are really slow, but it's funny. So, she usually get scheduled doing variety shows to make other people laugh. She loves it when fans give her hand-made gifts. She would treasure it very well and brag it out loud. To her, the members are everything. She love the members very much and would do anything to cheer them up. She's especially protective of the younger ones. She has a mature and understanding side if you need her advise or just need someone to talk to. So, the members might sometimes ask advise from her, even the leader.