Koyuki Hikawa is beginning to let her guard down, opening herself up to the friendship she shares with Miki Azumi. Their time together at school brings a new sense of ease to Koyuki’s otherwise quiet life. That changes when Minato Amamiya enters the picture, stirring emotions that Koyuki has long kept hidden.

As Koyuki, Miki, Minato and the easygoing basketball player Yota Hino grow closer, their friendships and feelings begin to take unexpected turns, bringing new experiences and challenges their way.