Humanly Demonic (IwaOi)

A friendship that breaks down every barrier.
But can a human and a demon be friends?

"If I really have to die, I prefer to be killed by the person who stole my heart"

"You absolutely mustn't show your true nature to strangers, especially humans. They would try to kill you, just because you are different from them. As soon as you meet a human, hide and don't be seen for any reason. Promise me, Tooru."

I don't own the characters but the plot.
Haikyuu belongs to Haruichi Furudate sensei.