Rinas real twin sister and the person Randou impersonates. She ended up running away from home in order to fulfill her dream of becoming a beautician. After she left she traveled to Otaru and started working in the Kaze hair salon owned by the Yoshida family. Additionally she started living with them for the time being too. During her time working at the salon Yuna was described to be a very hardworker. She is also very intelligent much like Rina though is smarter than her younger sister. After the salon went out of business she said she would go to a professional beautician school in Sapporo but later tells Randou that she has been attending a beautician school in Tokyo.