Onobori town is located on an island and is protected by a noren (a traditional Japanese curtain). Aka is a naive girl living alone with her grandfather who runs a coffee shop in a quaint windmill hut. An encounter with a giant black cat opens the curtain on a story of creating the colors of the future by weaving together the colorful splendor scattered throughout daily life. The title of the work is based on the theme of "creating colorful colors," which is inspired by the Italian language.