Peko comes off as a very serious and stern woman who shows little to no emotions. Despite her authoritative tone, she is respectful of authority figures and does not police the other students. She also loses track of time when practicing martial arts, but she is not antisocial or unwilling to stay around the other students. In her first Free-Time Event, Peko reveals that she has a strong affinity for animals, though they themselves do not share the same feeling.