Hikami Nagisa
氷上 渚
| Hikami Nagisa氷上 渚O | |
| Measurements | Height: 163cm |
| Birthday | 23 November |
| Hair | Ahoge, Brown, Long |
| Eyes | Blue |
| Body | Big Breast Sizes, Pale, Teen |
| Clothes | Apron, Dress Shoes, Miniskirt, Pajamas, Ribbon Hair Accessory, Ribbon Tie, School Uniform, Waitstaff Uniform |
| Personality | Classic Tsundere |
| Role | High School Student, Roommate |
| Visual novels | Main character - Signal Heart Side character - Signal Heart Plus |
| Voiced by | Oukawa Mio |