Masame Mimijima is a second year student in high school experiencing a crisis. Adults keep asking about the future and Masame's friends and family are changing. Everyone is well on their way to adulthood, but Masame refuses to mature. Her feelings alone are enough to summon a being that is referred to as a "Curse Creator," one who can grant her wish to never change. However, making a wish with the Curse Creator comes with a price.