Towards her members, family members or even her father's employees; She's very motherly like and mature. She never have a self centered  point of view, she usually thinks of others before herself, and takings things in a stride. She tends to treats the members and some fans to go eat with them, even if she doesn't have a lot of money. She takes cooking lessons at her University whenever she's free and shares it to her members what she had cook. She's able to understand that are to learn a positive lesson from obstacles (weather they are good or bad. She supports her members for the choice they usually make, although it might be a bad choice she would always tell you there always a good side to that choice. ) Sometimes, she doesn't know how to understand her members who has made pretty bad choices but she would always tries to comfort them and stick with them. If the members tends to get in trouble with the CEO, Trainees, or even their mentor, she would take the blame and the consequences for the situations. She tells all the members to responsible for their actions if the situations ever happens again.

However, Ye Jin's a dis organize person. She really hates cleaning up since she tends to get lazy at times or when she's exhausted. Her members would always yell at her, tell her to tidy her bed or clean out her closest. Even if she said she will do it, she would do it later or when her members tell her to do it, a couple of times. She would always yells at the members when she can't find her things, she takes her things and throw every where in the dorm which makes the dorm into a mess. Usually, one of the members will scold her but she will end up cleaning up the mess herself. 

She tends to forget things. Often she will get scold by her mentors if she keeps forgetting her lines or dance moves. Another flaw she has is she doesn't do things right away. She would just relax a bit and then do it, but sometimes if you don't tell her to do something relevantly; she would just forget it until the end of the day. When Ye Jin get angry or depress, she will ignore people and lock herself in her room or she would often kick/ throw things at people.She usually never think anything negative but if she does she will listen to ballad songs and make herself go to sleep. Sadly, she's is mad at someone, she would go to her father's hotel gym and start running in the tread mill until her stress is gone. If she is on a variety show and she really mad, she would always sigh and say nothing at all. If MC ask her a question, she will answer in a few words and possibly give them a death stare.