Chidoriyama Junior High (Japanese: 千鳥山中学,Chidoriyama Chūgaku) is a junior high school in Miyagi Prefecture. It's the former middle school of Karasuno's libero Nishinoya. It is considered a powerhouse school. Nishinoya decided to attend Karasuno because the school uniform is black, so Chidoriyama Junior High's uniform could be red or brown. Nishinoya also mentioned that in his time there, his team went up against Kitagawa Daiichi and there was a guy who could serve really well; it's possible he was referring to Oikawa.
The following information is for Nishinoya's third year in junior high. No other information regarding his former teammates is available.