"Eighteen is said to be the right age, an age without worries, but it's not the right age to say that. Seventeen, the excitement of becoming a high school student and nineteen, the pressure of having the biggest test in my life, but 18 is just 18. It's easy to talk about past teenage years, but because we're now in our first teenage years. Even in the ordinary days, nothing was ordinary. Every moment was too sincere to be called a worry-free age." How was your eighteen? When you think of eighteen, someone might think of them sitting at a desk in a quiet classroom and studying, while someone might think of them sitting in a huddle with your friends during break time. Stuffy and uncomfortable school uniform, a very occasional lunch menu, and a loud bell that signaled the beginning of class. The playlist's web drama, A-TEEN, is about the fresh and exciting school days of these teenage students. Friendship Hana~ someone calls a name in a bright voice, two students look back. The student with short bobbed hair is Do Hana, and the student with long brown curly hair is Kim Hana. Yeo Boram, who is puzzled after seeing the two. This was the first time they met. Kim Ha, Do Ha, and Boram quickly become close. The three spend every day together and have a happy school life. Sometimes they fight because of each other's misunderstanding, but at the end of eighteen, they still have each other. Academic studies Kim Ha is good at studying. She has never missed the top spot in the school, and her goal is to go to a good university. On the other hand, Boram has nothing she wants to do yet and doesn't like studying. She is just an innocent high school student who likes to sit in a PC room and play games. Do Ha still has a lot of worries about her career path. She likes to paint, but she doesn't know if she can continue it for her future. Like this, the three spend their eighteen, with different concerns. Love One-sided love. An experience that everyone might have had at least once in their lives. Do Ha has a crush on Min. Min, who is friendly to everyone, and so everyone likes him. Do Ha was also one of those people who had a crush on Min. She tries hard not to reveal her feelings, but it is not as easy as she thinks. Also, Do Ha is confused by Min's behavior, which seems to like Kim Ha but gives room to Do Ha. Love, Academic studies, and Friendship. You can't choose which of these is more important. For someone, the excitement moments with the person you like, for someone studying to go to a good university, and for someone, friendship with friends must have been the most important. Everyone keeping things that are precious to them must feel happiness and sometimes weep, but that's because that is our eighteen. Eighteen, the age we have a lot of worries and thoughts. So thank you for being at my eighteen, which must have been more passionate and sincere than anyone else.