I Am Feared by the Gods, And I Got Reincarnated as a Weaker Black Dragon

[This is a Fantasy story of my own creation, with the addition of Genshin Impact characters. This is not an Isekai.]

The most powerful of all dragons, as the humans call him, The Dark Dragon Tyrant is feared and reveared by all, including the gods.

He took his destructive tyranny to face the gods themselves. It took the power of all gods, and a seal of the 4 Dragon Gods, combined with the might of the God of Creation, and by the power of the Champion of the Gods, all to finally put an end to his reign of dread. But this was but a way to slow him down...

It has been 100 years since he has been defeated by the Champion of the Gods, who lost his life at the end of the battle. Most of the gods had fallen in the battle between the Tyrant and themselves, aside from the strongest of those. And so we follow along the life of a young Black Dragon named Brooklyn Tatakawa. But there is a small problem. He is actually the reincarnated Dark Dragon Tyrant! And he is upset to see that so much has changed. To him, the legendary battle was just a moment ago, but then he was suddenly put into the body of a baby in human form. It appears that he was born into the race of dragons he hated the most, aside from the light dragons...the Black Dragons.

Now this Tyrant has to grow up and try to get his original body back, and retrieve his sealed away powers and find the gods who punished him! They will pay for what they refused to do oh so many millennia ago...