Yabashi Shingo

Shingo is a trouble-making boy who is a bit haughty and quick to mouth off, but underneath he has a very strong, unyielding spirit. He was raised by strict parents, but failed his exams to a private school on purpose to revolt. He is Reiji's neighbor, and comes to visit Reiji in his sickroom often, to receive tutoring from him, even though often he doesn't need it.