Kazuya Miyauchi

Kazuya Miyauchi (宮内 和也 Miyauchi Kazuya) is a popular and attractive boy in Nanoka Kohinata's class. He's initially introduced as a possible rival for her affections, but in the manga he has a forbidden love of his own and is infatuated with the school librarian. Unlike Futaba Anzai or Yoko Tamaki, Miyauchi does not tease Nanoka about her "brother complex" and tells her not to take their jokes to heart.