Even though Jaehee is a fairly serious and independent business woman, she cares deeply for her friends. Jaehee has her own dry sense of humor and knows how to have a good chuckle at herself and others when warranted; however, she does not enjoy the spotlight, and may withdraw or deflect when her positive qualities are pointed out. She likes things to be organized and kept in line, and is often irritated by Seven's antics and Yoosung's perceived laziness. It is very frustrating to her when things do not go as planned or are not practical. For this reason, she is frequently at odds with her boss, Jumin, who enjoys giving her endless chores, even those unrelated to her work as his secretary. Even so, she always comes out on top. She is an extremely capable person, and even has a black belt in judo.

She is one of Zen's biggest fans, which sometimes causes her to humorously break her calm and serious demeanor. In his route, she berates the protagonist for ruining his image with tabloid scandals, but later apologizes and whole-heartedly owns up to her mistakes. The three are implied to be close since that time.

Voice Quality/Tone: Medium-pitched canonically. Open to slightly higher or lower pitched interpretations as well, as long as they capture her personality! Serious and businesslike at times, but able to portray a dry sense of humor, hysterical exasperation when stressed, as well as an innocent sort of affection in response to compliments. She becomes a bit more energetic when gushing about her interests.

Voice Reference: https://www.youtube.com/watch?v=yfbrIqTD1rA