Aihara Kyouka
愛原 京香
| Aihara Kyouka愛原 京香 | |
| Measurements | Height: 160cm, Bust-Waist-Hips: 84-58-85cm, D cup |
| Hair | Brown, Sidehair, Spiky Bangs, Straight |
| Eyes | Violet |
| Body | Pale, Slim, Young-adult |
| Clothes | Court Shoes, Dress |
| Role | Mother, Researcher |
| Visual novels | Main character - Houkai Tenshi Astraea |
| Voiced by | Ayase Yuri |