Kendini haiku aracılığıyla ifade eden utangaç bir genç ve kendinden emin, neşeli bir kız, güneşli bir günde tanışmalarının ardından kısa ama sihirli bir yaz yaşar.

Words Bubble Up Like Soda Pop

High school student Aoi Aioi lives with her elder sister, Akane, after a tragic accident took their parents away 13 years ago. Because Akane has since been taking care of her single-handedly, Aoi wants to move to Tokyo after her graduation to relieve her sister's burden and pursue a musical career, inspired by Akane's ex-boyfriend Shinnosuke "Shinno" Kanamuro. Shinno was part of a band until he left for Tokyo to become a professional guitarist after the sisters' parents passed away, and he was never to be seen again.