Grieving Emani, a graduating student who believes that everything needs to be related to colors in some fundamental way, is now having a hard time figuring things for her future and finding where her missing color, Red, for passion, lies within her. Aito, a darling child known for his great looks but is still on his way to discovering himself, is intrigued by Emani's straightforwardness and virtues. And Mayuko, a straight A's student who happens to sit beside Emani during her Algebra class. With all these colors trying to squeeze their way to Emani's personal space, how will she spend her last school year unraveling herself?