Sakaki Seia
榊 聖亜
| Sakaki Seia榊 聖亜 | |
| Hair | Brown, Long, Ponytail |
| Eyes | Teal |
| Clothes | Bunny Dress, Chinese Dress, Cross Necklace, Detached Sleeves, Garter Belt Stockings, Habit, Hair Tie, Kimono, Lab Coat, Maid's Dress, Maid's Headdress, Strapless Dress, Wedding Ring |
| Engages in | Cosplay |
| Visual novels | Main character - Hitozuma Cosplay Kissa |
| Voiced by | Shirai Ayano |