Mayumi Tendo

Not much is known about Mayumi Tendo. She may have been mean-spirited, since she, Fumiyo and Yoshimi locked Noriko Nakagawa in a restroom stall that had insulting things written on a wall about her.
Mayumi may have been friends with Fumiyo Fujiyoshi and Yoshimi Yahagi. It can be assumed she was on bad terms with students she bullied, such as Noriko Nakagawa. Her relationship with the rest of the class is unknown, although it is possible she could have been friendly with Mitsuko Souma's group, due to her connection with Yoshimi. However, she was on good terms with most of the boys such as Shuya Nanahara and Kazushi Niida.