The characters are quite interesting, but I don't even know if they are original or are from different series... It's also pretty standard for him to awaken the Boosted Gear early in fanfics like this, but who knows? Maybe he won't awaken the Boosted Gear until when DxD canon actually begins, although we really haven't seen much of him if he even appeared yet.

Seems that I called it in my previous review when I stated that either Issei doesn't exist, this is happening one year before DXD canon begins, or something weird is going on. I will be honest, Harukuni would be someone that Issei would despise and oppose.

Wait a minute, since Issei is not part of the Occult Research Club yet and both Rias and Sona are still in the High School Division of Kuoh Academy this is probably set one year before DXD canon actually starts. That is of course unless Issei flat-out doesn't exist in this story or something really weird is going on...