(First Name) (Last Name). A composer. Ever since her sister Nanami ever appeared in the Japan music industry, things were never the same for (Name). She was seen as a shadow, not fitting in quite well. Making her leave, and force herself, to start a new journey.
Now, 3 years later, she has returned to Japan, this time, an idol. What happens when Nanami and (Name), meet each other? What happens when they have to start working together? What happens when, (Name), falls into something called 'in love'? Or, is it just an exaggeration?