Hiroyuki Ino

He was Kurou's childhood friend, but when Kurou had to shift into nue form to save Hiroyuki's life, Hiroyuki feared Kurou and later believed Kurou sent ayakashi to attack his village, which was actually Hisui's doing.
During Kurou's Book II, Hiroyuki realizes who was really behind the attack and so begins to reconcile with Kurou.