Hayasaki Minaha

"If you're ever worrying about something just say so. I'm here to give you advice."

Appears 15 years old, actual age 33 years.
The protagonist's classmate at Onigasato High School, he's one of the 'Three Wings'.
A guy who talks and acts without reservations despite his small stature and pretty appearance.
He's the youngest oni to be chosen as one of the Three Wings, and he acknowledges Reiji and Mitsuaki as his superiors.