Other name: 鮎川 龍二
Ryuuji is a boy who cross-dresses and goes by the name "Yuka." They are Yatora's classmate who invited Yatora to join the art club.
Yuka is boisterous and seemingly confident, despite their underlying anxieties. They act in a cutesy and flamboyant manner which tends to attract a lot of people to them.
They are closest to their grandmother, who is the reason why they decided to pursue Japanese Art. Yuka will often put on a bright demeanor in front of her, and when placed in stressful situations they are often brash and impulsive.