Park Yeorin wasn't meant to be part of Seventeen's lineup, but fate had other plans. As the only girl in a group of 13 boys, her journey and her fate made her a 14th star of Seventeen.
Park Chae goes to a rich school and has gone most of her school year unnoticed. She's known for being smart and always ranking 1st, but other than that no one really knows her.
One day she meets two boys from her school and suddenly her life becomes stranger, especially after meeting their 11 other best friends.