Sonoya Chiharu
園谷 千春
| Sonoya Chiharu園谷 千春 | |
| Aliases | Chii-chan, ちーちゃん |
| Hair | Parted to Side, Ponytail, Straight, Violet, Waist Length+ |
| Eyes | Amber, Tsurime |
| Body | Big Breast Sizes, Young-adult |
| Clothes | Belt, Hair Tie, Lab Coat, Necktie, Shirt, Skirt |
| Items | Stethoscope |
| Personality | Atashi, Cheerful, Friendly, Funny, Mischievous |
| Role | Friend, Older Sister, School Nurse |
| Engages in | Drinking, Teasing |
| Visual novels | Side character - Omoi o Sasageru Otome no Melody Side character - Omoi o Sasageru Otome no Melody ~Afureru Omoi o Shirabe ni Nosete~ |
| Voiced by | Kawashima Rino |