Narumi Sumika
鳴海 澄香
| Narumi Sumika鳴海 澄香 | |
| Hair | Short, Straight, Violet |
| Eyes | Blue |
| Body | Pale, Slim, Teen |
| Clothes | Hairpin, Ribbon Tie, School Uniform |
| Personality | Tsundere |
| Role | High School Student, Schoolmate |
| Engages in | Music Learning |
| Subject of | Death |
| Visual novels | Main character - Dear Pianissimo |
| Voiced by | Chiba Saeko |