Arai Rio
新井 理音
Safe / Tame (15)| Arai Rio新井 理音O | |
| Measurements | Height: 163cm, Bust-Waist-Hips: 84-55-87cm |
| Hair | Blue,Short |
| Eyes | Pink |
| Body | Pale |
| Clothes | Crop Top,Naked Apron,Shorts,Tank Top,Yukata |
| Role | School Boxing Club Member,School Sports Club Assistant,Student Club President |
| Engages in | Boxing,Cycling |
| Visual novels | Main character -Natsuiro no Apron |
| Voiced by | Aoyama Yukari |
DescriptionA classmate of Kazuto's and the manager of the boxing club. She often jokingly argues with him. While her personality is unrefined and unyielding, she actually has an incredibly girlish crush on Kazuto. | |