DXD: Heavenly restriction

Rias’s older brother and middle child of the Gremory clan born without even a trace of magic in his body. A dissatisfying child compared to his eldest brother and youngest sister. A child abandoned by the heavens. Such a disgrace to his clan that his own mother couldn’t bare to look at him. Why was he born? In world of gods and goddesses demons and devils Why was he born with not a trace of power born to the strongest of devils? An outlier like him. Will he get revenge for their failure? or will he realize the world he was born in needs change? needs revolution? ________________________________ no harem and very little romance more darker elements to the dxd show and less playful also MC will have more powers then just heavenly restriction. Btw the MC isn’t reincarnated my own OC born into DXD, Also the MC isn’t going to be extremely intelligent or crazy op, He’ll be strong but like not a super devil in 20 chaps.