Bora Yeon

Bora is a tough person who speaks her mind. She swears a lot and smokes cigarettes, and people think she is scary. She is close friends with Cha Soyeon. She is hard on Noh Aeseol and watches her a lot because she worries that her spacing out will cause an accident and get a lot of people hurt. She grows to care about Noh Aeseol. In chapter 29, when a Cell near her is about to explode, she jumps on top of her to protect her, resulting in a lasting damage to Bora's hearing.