| Shimizu Chiho清水 地歩 |
| Aliases | Chii-nee, ちー姉 |
| Hair | Blond, Curtained, Parted to Side, Ponytail, Waist Length+ |
| Eyes | Tsurime, Violet |
| Body | Big Breasts, Pale, Slim, Teen |
| Clothes | Hair Flower, Hairpin, Pleated Skirt, Ribbon Tie, School Uniform, Sleeveless Sweater |
| Personality | Atashi, Brother Complex, Energetic |
| Role | Non-blood-related Sister, Older Sister, School Athletic Club President, Triplet+ Sister, Twelfth Grader, Younger Sister |
| Visual novels | Main character - Ane wa Tsurezure Naru Mama ni ~Otouto no Ecchi na Osewa wa Ama-Ero JK Sisters ni Omakase!~ |
| Voiced by | Tsuruya Haruto |