Jisoo, Nayeon, and Jungyeon are childhood friends. They've known each they were kids. Nayeon and Jisoo are neighbors and they met Jungyeon while they were on the playground. Nayeon got into a fight because a boy made Jisoo cry. She fought back but the boy is too strong and pushed her away. That's when Jungyeon came and saved the day. From then on, they were always together.

   Nayeon was always been the clumsy-type who always ended up getting wounds and Jisoo would always treat her wounds. It almost became a habit that Jisoo came up with an idea to bring a first-aid kit everyday when going to school. Jungyeon will then be the one scolding Nayeon to be cautious and not hurt herself. But that only ended up as a routine as Nayeon never fails in getting herself hurt while playing. This cycle subsided when they became old enough to play childish games. But Jisoo still brings a kit with her as a habit but this time is way smaller than the one she used to bring.   The three of them are inseperable. They also grew up being admired by their peers. With their looks and attitude, they've became really popular in their school. With Jungyeon's cool aura and athletic abilities, the ladies in their school follows him while the guys wanna be like him. They were also jealous by the fact that he is close to the two girls who were sought after by many guys.    Nayeon became the cheerleading captain. Surpringsingly, her clumsiness wores off when she dances. Jungyeon and Jisoo even thought she's just faking her clumsiness when she was younger whenever they see her perform. The wounds that she had before also vanished leaving no mark on her flawless skin. She has many admirers but she all turned them down.   And then, Jisoo became the student council president. She was admired by her intelligence and also because of her kind heart. She is very caring and helpful to everyone. Many guys also lined up for her but they were too afraid because Jungyeon is always beside her like a body guard.    Everything in