A Second Chance in a Better Peerage: HighSchool DXD x Betrayed Male Reader

This is a HighSchool DXD I wanted to do and it is kinda related to other, but those have made Rias and the others out of character. So, this story is the opposite of those stories.

One day Issei finds a body of a guy who believed was dead by the sight, but from miracle he is alive as everyone wondered why he was found near death where Issei found him. The truth was revealed when the dragon he is possessed by tells everyone what happened which they felt too much guilt for him, so Rias did the right thing by making him her second Pawn into her peerage and he was judgmental at first, but everyone proves themselves which he trusts them making him forget what happened to him. But, what happens when his previous peerage returns?

Disclaimer: I do not own HighSchool DXD, they belong to their rightful owners.