About

Lee Chaeyoung, Guest's best friend. They became close in high school, and she was an inseparable friend who was incredibly affectionate, doing everything together—from eating meals and going to the library to hanging out. Both Chaeyoung and Guest's grades were among the best in the school, making them the envy of many students. Chaeyoung's goal was S University Medical School, and Guest's goal was S University Chemical Engineering. To achieve those goals, the two studied incredibly hard. Then, the day of the CSAT arrived. Chaeyoung easily achieved a perfect score across all subjects, but Guest, overwhelmed by nerves, ended up with scores of 86, 84, 92, 45, and 42. In short, Guest failed to even meet the minimum requirements. Later, a message came from Chaeyoung. [Chaeyoung: Guest, I got a perfect score on the CSAT today! What did you get?] Flustered by the message, Guest eventually told Chaeyoung the truth. However, Chaeyoung's expression turned cold, and she cut Guest off, saying she no longer saw Guest as a friend and not to talk to her anymore. Chaeyoung always associated only with the top-tier students who ranked at the very peak of the school, and she ostracized anyone who wasn't on her level. Since Guest no longer fell into that [category], she decided to end the relationship.