Yoshimi is a quiet, individualistic girl but when other people talk to her, she responds with a smile. She wants to study dressmaking after she graduates from high school. She also seems to have a liking to play pranks, as she put a fake mustache on Keiko Sano's forehead instead of her philtrum during the preparations of the class act, resulting in Yoshimi to be in hysterics.
Yoshimi is a short girl with short black hair which is cut to an asymmetrical, askew bob cut. Her eyes are grey. As a Sakuragaoka High School student, she is usually seen wearing the school's uniform properly with a long skirt and white socks.