transcendce (high school dxd harem x OP depressed male fallen angel oc)

Toad Skywalker is a fallen angel/human hybrid with a tragic past. His father used to conduct experiments on him at an early age and his mother would always try to protect him until they couldn't take it anymore and ran away. They moved to kuoh to live a quiet life until they were approached by Azazel. Toad became a student of kuoh academy so he can try to have a peaceful life. That is until he met Rias Gremory who has taken an interest in him but Akeno on the other hand has fallen in love with him not just because he's a fallen angel, but because her circumstances are similar to his. Toad would always try to put on a fake smile but Rias and her peerage know that deep down, he's hurting and wants to help him. Every other girl feels the same way.