DXD BROTHER
What if Issei have a brother?
What if His brother or him have the sacred gear? YOUR CHOICE ON WHO
What if during the date with Yuuma, Issei or his brother followed the other only to see the outcoming?
There he could try to help him oly to receive the spear of the fallen angel awakening his sacred gear but obtaining the same result
Summoned Rias don't know who have asked for her help but with the pieces in her possession she could reincarnate only One, This is where you'll make her choice
This is my challenge and could have three possible outcome that you could follow.
-The brother Dies and Issei is revived but live his life with regret for causing his death for the sacred gear in his possession
-The brother survive thanks to Rias thinking that Him is the cause of his brother's death for the sacred gear in his possession
-Rias could revive the character with no sacred gear (Is possible)
There are only two things to say in the development of the fanfiction for the choice of the gear presence.
-Issei will start to have doubt about Gremory and her peerage, (more his brother if he survive) when he discover that Rias was following the movement of Yuuma or how the leaflet work knowing that he could have died during his date. (this is more realistic)
-The sacred gear could it be Draig or another Gear but if Draig is not with Issei think about When he could appear during the Story Arc
If Rias revive the character with no sacred gear
-Asia have to die for his confidence Issue gainig extreme or less paranoia against the Gremory Peerage
-AfterAsia's death Issei start to train seriously (your choice how example asking for help do Mil-tan seeing her strenght or other character) in order to leave the peerage of such a manipulative character.
For ther rest you are totally Free to develop the fanfiction as you believe it.