Why me? (Depressed male reader x Highschool DXD)

Y/n L/n a normal boy at kuoh academy..... ah fuck it he is a member of gremory peerage, so yeah he is a devils, at first he really nervous around them but as time pass by he start to feel comfortable around them and start to have a feeling with his king rias gremory, one of the queen of kuoh, but he's not just love her, he loves all the girls in the peerage until one day a pervert come to the peerage.