According to Reika, Karin-sensei’s explanations are easy to understand. Karin is the type who praises people to get them to try harder, a perfect match to Reika who does better when praised. Overall, Reika made progress studying with her.
She is older than Kisshouin Takateru. [c72]
She retired from being Reika’s home tutor in high school as she had graduated university and is now looking for a full time job.