Kawai Rika
河合 理佳
| Kawai Rika河合 理佳B | |
| Birthday | 11 May |
| Hair | Braid, Braided Hair Loopies, Curtained, Odango, Parted in Middle, Pink |
| Eyes | Pink, Tareme |
| Body | Pale, Slim, Teen |
| Clothes | Glasses, Ribbon Tie, Rubber Band With Beads, School Uniform, Turtleneck Shirt |
| Role | High School Student, Scientist |
| Visual novels | Main character - Tokimeki Memorial 3 ~Yakusoku no Ano Basho de~ |
| Voiced by | Hattori Kanako |