Replaced(HighSchool Dxd X Replaced Issei)

timeline took place when issei was about to die, but instead of rias helping him, he instead died, but during his last breath, he's life flashed before his eyes and finally saw his wrong doings and regreted it.

and like the old ones said, if you've gone to far, you would dare to make a deal to the devil, and so... he wish to make amends, and finally become a soul crystal.

Little did he know, that wasn't the only thing he wished. As he also thought.

'What if i was stronger?'

And his request was answered.

his body started to move. and from there a new soul replaced issei.