SaeRin is a female idol that debuted only a few months ago in a girl group, PRIME. They were initially not well recieved, but SaeRin shot to fame with a OST for a drama, and ever since, offers to work with the group have been flooding in. She is a fan of Woozi from Seventeen because of his dedication to producing music, but never expects him to accept an request to collaborate. What happens next? :)