Well, I decided to publish this story earlier.
Summary: Issei after defeating Hogback, he takes on the mantle of Dragon God of Dreams and Apocalypse.
Pov: narrator
At this moment we see a pensive Issei in the air.
Pov Issei
Issei mind: Well, what should I do now? Since I am the new Dragon God of Dreams, is Ddraig there? Ah well, I'll summon Ddraig to have a chat.
Back to the narrator
We see a manopole appearing in his hand, and he says the following.
Come Ddraig, I invoke you to our reality.
Suddenly the manopole begins to glow and we see a giant dragon appearing.
and a voice emanating power and pride.
Pov Ddraig
How long haven't I come out of this manopole, do you understand what has happened, Partner?
Issei: Oh Ddraig, the reason for this is simple! Speaking with tension, What should I do as the new Dragon God of Dreams?
Ddraig (serious and proud): You have to do his job, protect the dimensional gap.
Issei: Why? The strongest God.exe is dead, what can the others do now that their leader is gone?
Ddraig: You have a point, but you must keep watch there just like Great Red used to.
Issei: Well, I'm not going, no need to worry, after all, Ophis is there and I'm not in the mood to start a fight with Ophis even though she is weaker than us currently. She is still a female Dragon God - it wouldn't be nice to deal with the fury of an angry woman.
Ddraig: you're right, Partner, she's obsessed with her silence and having a crazy woman like her after us won't be nice.
Pov Narrator
5 minutes before Issei and Ddraig's conversation
In the familiar forest in a cave we see an enraged Blue Western Dragon, this was Tiamant the strongest Dragon King.
As Tiamant's words were: Ddraig!!
All the familiars and family heads were in shock because Tiamant was passing by at a surreal speed.
Back to Ddraig and Issei who were talking and discussing responsibilities as Dragon Gods, ignoring the rest.
Pov Tiamant
Ddraig!! You damn coward, you appeared!!
Tiamant was roaring in anger.
Pov Satans
Sirzechs in a state of shock still about the death of Great Red and the rise of Issei as the new Dragon God.
Sirzechs: We need to enter an alliance of peace as soon as possible with the other 2 factions, because if another god.exe invades and attacks us we won't know if we can defeat them, we need to see if this Issei is an ally or an enemy if he is an enemy I fear that all factions will be extinct because we don't have anyone who equals Great Red here, not to mention that he can summon Ddraig and from what I see in his strength, he must be stronger than in his prime.
Ajuka: I agree with you, Zechs, if he's an enemy we'll be annihilated without mercy.
Serafall (serious): I echo your words, Aju-tan.
Sirzechs: Serafall, Ajuka, did you feel that? Zechs said seriously.
Ajuka and Serafall: yes, it seems that Tia-chan is coming enraged/Tiamant.
Pov Falbium
Falbium: Hmm, what devastating power is coming from the arena, Ajuka, Zechs, Serafall are there,
Well, they should handle it.
ZZZZZZZZZZZZZZZZZ
Pov Arena/general
General: wait, Great Red is dead? what kind of monster was that to kill Great Red.
Issei P: Am I really that cool? Issei asks Ddraig with stars in his eyes.
Ddraig M: What pride, why isn't this pervert like his alternative version?
Ddraig M: wait, this aura is familiar, don't tell me? Tiamant came after me?
Ddraig M: don't tell me she's going to attack my version when I was alive? No, she's not crazy to that point, this version of mine is much superior to me or Albion in our prime.
Pov back to Ddraig and Issei
Ddraig: So partner, what are we going to do? You don't want to go to the gap to keep guard, it's boring there, right? But you have to take care of it.
Issei: Nah, Ddraig, it's boring as hell there, there's nothing to do there, not even a fight will happen because the God.exe are scared to attack since they lost their leader. So it won't be fun at all, and I'm not in the mood to fight Ophis. I could defeat her, but she will want to be my wife because of the Dragon's Law.
Ddraig: understandable.
Pov Narrator
Everyone who was watching was shocked by the rise of the new Dragon God, everyone thought the same thing as Zechs.
Everyone: is he an enemy?
Returning to the casual conversation, they realize that the strongest dragon king is going to attack the two present.
Pov Tiamant
Ddraig, you damn you, don't forget what you did.
Tiamant: taste my flames.
Chaos Fire Karmic.
Pov Narrator
The flames of the strongest dragon king were heading towards Issei and Ddraig who were talking about trivial matters.
Pov Ddraig (manopole)
Ddraig M: Is she an idiot? She will die, you don't attack such a powerful being who is talking.
Back to the Narrator
Issei and Ddraig took the full blow from the strongest dragon king, which scared everyone because they were off guard.
Then a huge dust cloud formed.
Pov Tiamant
Tiamant: hahahaha, Ddraig, you and your host are dead, that's what happens when you let your guard down and lose my treasures.
Back to Issei and Ddraig
Note: Well, for those who thought they weren't paying attention, they are aware that they ended up in an alternative timeline because this Issei is intelligent and his IQ, for those in doubt, is 467.
Seconds before: Issei and Ddraig: damn, we forgot that Tiamant hates us here, there's no choice, Ddraig, beat the Phenex idiot and I'll finish this fight against Tiamant.
Ddraig: ok, partner.
Pov Narrator
Everyone saw the dust settle and were surprised that the two of them were okay.
What they heard was Ddraig telling Phenex idiot I'll take care of Tiamant.
Pov Issei
Issei: hey Tiamant, I forgot that you hate this version of Ddraig, but you attacked the wrong Ddraig, you are so blinded by rage that you didn't even realize his level, or mine.
I'll end this quickly, said a serious Issei.
Before Tiamant could say anything, all the supernatural beings saw was just one punch at an abysmal speed hitting Tiamant squarely, causing destruction in half of the rating game dimension.
After the dust settled, all they saw was Tiamant, the strongest dragon king, knocked out with one punch from the new Dragon God.
And before they could see anything else, the only thing they heard was Riser Phenex eliminated.
That's it, the next one will come out when it's not cold :V
Note: I'm not sure if I mentioned it, but Issei's harem will be the same as in the canon with the addition of the members of Issei's peerage from the canon, Tiamant from this dimension, and Ophis (that's a spoiler for you guys). And that's it, bye. Kisses.