Siyeon is one of the popular girls at school, although she doesn't feel like it. Bora is just another student, she wants nothing more than to just graduate and be done with school. One day they bump into each other at school. As they get closer to each other, Bora realizes Siyeon isn't as perfect as she looks. She looks like a butterfly, free and careless. But sometimes even butterflies can be a little broken.