Matsuya Keiko
松屋 慶子
| Matsuya Keiko松屋 慶子 | |
| Hair | Brown, Long, Ponytail |
| Eyes | Brown |
| Body | Mole |
| Clothes | School Uniform |
| Personality | Perfectionist, Serious, Strict, Vindictive |
| Role | High School Student, School Tea Ceremony Club Member |
| Visual novels | Side character - Sakura Sakura Festival! |
| Voiced by | Toumi Haruka |