Noriko is a teenager with short black hair styled in a pixie cut with black eyes. She wears the Satsukiyama Academy school uniform consisting of a brown double-breasted jacket, a white sailor shirt with a black trim, and black skirt with knee-length black socks and black loafers.
There is not much known about Noriko's personality. She doesn't seem to be very good at explaining homework to her classmates and also seems to be close to Kana.
In Heavenly Host, she is found in a classroom together with Kana, Minoru Hasegawa, Shinichi Yanagihara, Yamazaki, and an unnamed fifth student. After Shinichi, Tamaki and Miyako Hayakawa leave the classroom and come back to the classroom, they see all of their classmates brutally murdered. Noriko is seen being impaled by a wooden pole and slumped over a desk.
Later, it is revealed that Saki Akagiri was the one who killed her.