Natsumi-sensei
夏美先生
| Natsumi-sensei夏美先生B | |
| Measurements | Height: 165cm, Bust-Waist-Hips: 91-59-89cm |
| Birthday | 6 March |
| Hair | Orange, Shoulder-length |
| Eyes | Brown |
| Clothes | Lab Coat, Skirt, Turtleneck Sweater |
| Role | Teacher |
| Visual novels | Side character - Step×Steady |
| Voiced by | Nirai Kanai |