Ryou frequently remarks on the contrasting appearances and intelligence of childhood pals Nagisa and Yumi. Yumi falls for the good-looking and intelligent Kei, spurring Nagisa to play Cupid like a true friend. Nonetheless, Kei seems more intrigued by Nagisa's extroverted personality than Yumi's timid demeanor. The storyline becomes more intricate as Ryou possesses love for Nagisa and there is a possibility that the sentiment is mutual.