Kuriru Wakasagi is a supporting character in Wash It All Away. She attends high school in the seaside resort town of Atami. She is the twin sister of Moruda Wakasagi and a classmate of Kyusho Ishimochi. Described as cheerful yet careless, she first becomes involved with the central laundry shop, Kinme Cleaning, through a chance button repair performed by its owner Wakana Kinme. This incidental encounter draws her into the daily life and quiet stories that surround the cleaning establishment. Her primary relationships are with her twin, her classmate, and eventually the people she meets through the shop. Her character does not exhibit any extraordinary abilities; she is portrayed as an ordinary young person whose path intersects with the protagonist’s world in a simple, everyday way. The available narrative provides limited insight into her deeper motivations or a clearly defined arc of personal growth, focusing instead on her presence as a friendly classmate and neighbor within the close-knit community.