Nana must obtain the written consent of her dad and her “moms” so that she and her younger siblings can change their names—which were originally given to them without much thought.

Jee-eun, a true romantic, is convinced that her love is real. One day, she notices a small mole on her boyfriend's face. As the mole mysteriously grows, it begins to bother her. Then, a new man appears, shaking up Jee-eun's entire world.