what happens if a another entity gets thrown into the world of dxd? how will our favorite devils react to this? much more if this new individual is also their most hated enemy...yeah i know a bad summary. OC-centric, maybe Overpowered OC's, Isseixharem and OCxharem

A sixteen years old boy who thought he seen all craziness in his life, transfers to kuoh Academy. suddenly gets thrown into the world of the supernaturals. he has only one thing in his mind: "well...sh*t, maybe I didn't get to see all the craziness after all."