Matsuko Arita

Matsuko seemed to be very cheerful and sociable as she was often seen with many female classmates. She was apparently good friends with Yumi Ogura and Sachiko Nakajima, as she was seen with them most often. However, despite her friendly personality, it could be seen that she supported the broadcast directed by Takako Sugiura, which incited everyone to murder Mei Misaki for supposedly being the "dead one."

Matsuko is a fair-skinned girl of average height. She has shoulder-length dark brown hair (very similar to Yumi's) and brown eyes. As a high school student, Matsuko wears the standard female uniform, but during the school trip, she can be seen wearing a yellow sleeveless shirt and purple shorts.