| Ayakawa Haruki綾河 春生 | |
| Hair | Orange, Waist Length+ |
| Eyes | Amber |
| Body | Pale, Slim, Teen |
| Clothes | Pantyhose, School Uniform |
| Personality | Eccentric, Genius |
| Role | High School Student |
| Engages in | Mind Control |
| Subject of | Mind Control |
| Visual novels | Main character - Soushinjutsu Gaiden ~Ayakawa Hakase no Hentai Jikenbo~ |
| Voiced by | Kanematsu Yuka |
| Ayakawa Haruki綾河 春生 | |
| Measurements | Height: 161cm, Bust-Waist-Hips: 86-60-84cm |
| Hair | Brown, Orange, Parted in Middle, Shoulder-length, Spiky Bangs |
| Eyes | Brown |
| Body | Pale, Teen |
| Clothes | Miniskirt, Ribbon Tie, School Uniform, Shorts, Sundress, T-shirt |
| Role | Daughter, High School Student, Niece |
| Subject of | Hypnotism |
| Visual novels | Main character - Soushinjutsu |
| Voiced by | Kanematsu Yuka |
| Ayakawa Haruki綾河 春生 | |
| Measurements | Height: 162cm, Bust-Waist-Hips: 88-??-??cm, D cup |
| Hair | Brown, Orange, Parted to Side, Short, Spiky Bangs |
| Eyes | Brown |
| Body | Makeup, Nail Polish, Pale, Slim, Young-adult |
| Clothes | Blouse, Bracelet, Lab Coat, Leather Jacket, Pantyhose, Skirt |
| Personality | Genius |
| Role | Cousin |
| Subject of | Hypnotism |
| Visual novels | Side character - Soushinjutsu 3 |
| Voiced by | Kanematsu Yuka |