The president of the Campus Life Club. She manages food, electricity, lessons, and other resources and activities. Yuuri is usually very calm and matured, and gives off a very relaxed air, and is usually proper of her actions. She also is quite serious, but like Kurumi, she always cares for her comrades as she looks after Yuki in the school. It is later revealed in the manga that she has a younger sister named "Ru-chan" who she seemingly rescued in an elementary school while they were traveling.