Marisa is a young girl with purple hair tied up in a ponytail. She also has a pair of round brown eyes, and a pale complexion. She is usually seen wearing the standard girl's uniform in which consist of a shirt, a cardigan, and a skirt.
Marisa has a strong intellectual curiosity, as shown when she talked about the girls' skirts when doing a handstand at the beginning of the anime's opening did not roll up. But when she did the handstand on her own at the corridor, her underwear became completely exposed to view by Kanade.