HighschoolDxD x Male OC

Avian Malphas is a 2nd year at Kuoh Academy. He is also the missing and last member of the House of Malphas even though his father was head of the house his mother was a human so he has been hidden from the devil world. He also gained a sacred gear which was possible due to his half human blood. How will the other devils at the school react to his arrival?

P.S- First Story