In a world where emotions take the form of flowers, the main character, Aoya, is a talented artist whose flowers have always been vibrant and full of life. But one day, she discovers that her flowers are starting to wilt and disappear. In desperation, she embarks on a journey through the City of Dreams, where people wear their emotions as flower ornaments. There, she meets a mysterious musician named Rin, whose flowers bloom at her touch. Together, they unravel the mystery of the vanishing flowers and learn that the world around them is on the brink of emotional collapse. Their task is to restore the lost emotions before it's too late.