Suiren has finally realized how much she likes Kawasumi. All she wants is to tell him how she feels, but every time she tries, the words won't come out. Summer vacation is right around the corner, though, and Koharu Shinkawa, an upperclassman, already has a plan to win Kawasumi's heart before school starts again. Will Suiren be able to find the words to invite Kawasumi to the fireworks festival before it's too late?