Disclaimer, I own nothing. Also, this series will be about Gilgamesh walking around Remnant, foiling everyone's plans and being an asshole, but not immediately killing everyone, like he probably would. Basically, he keeps Jaune's knightly sensibilities so that he doesn't just find Salem, kill her, destroy the pools of Grim, and conquer the world in about an hour.
Gilgamesh walked through the tower doors where the old man and the teacher waited for him. Rather bored, he walks through the doors, then sits down on a giant golden throne. The old man blinks, coughs, and says, "Mr. Arc. We'd like to discuss your semblance with you." And Gilgamesh looks at the two.
"Jaune Arc is dead. His Semblance of the magic humanity once wielded during you cycle was rather unique. You might want to send out your secretary, we have things to discuss, and I'm sure you don't want me noting several similarities to your wife." He grins as Ozpin straightens up and becomes far more serious.
"Glynda," He asks, "Please leave us." His eyes focused on the man on the golden throne unsettling the huntress and she hesitantly walks out of the office.
"Who are you?" Ozpin asks.
Gilgamesh closes his eyes for a moment. "I am the King. Gilgamesh, King of Heroes. The greatest of all heroes, the first and original hero who collected all the treasures of the world. I come from a time when Gods, many far greater and more powerful than your two brothers, walked the earth. I ended that age, and started the age of humanity. All the world belongs to me for it is I who deserves to rule it. I am the King." He answers as eh looks down on Ozpin. "And you, you are the legendary hero, Ozma, who saved the girl from the tower and died from a disease. Then, after she spends millions of years on this planet waiting to die so that she could join you, the great Ozma proved to be a coward. You could not handle a single argument with her. Rather than trying to save your soulmate from her fall, you chose to run, and I have a few questions for you, old man." The king seems to now be judging Ozma, who as the King tore into him became more and more aware of the sudden shift in power between them. "Did you think even for a moment before you took the kids that she would ever harm them? Have you realized that the easiest and most permanent way to world peace by then was her plan? And finally, have you realized that you are under a Geas from your god?"
Ozma looks down, unable to raise his head under the weight of his mistakes. The king rises and walks out the door, the throne disappearing behind him. "Answer the questions in your own time, but when you come to the conclusion, if I judge your decision worthy, I will save you." The king walks out the door, and goes to his new...room.
Glynda walks in moments later. "Sir?" she asks hesitantly. He looks at his assistant, and for a second he sees Salem instead. Hope, love, and finally despair flash through his heart at lightning speed. It is only thanks to his millennium of life that she doesn't catch his pain as his memories of the woman he still loves nearly overtake him. He calms down and answers his most trusted ally in this life. "The man formerly known as Jaune Arc needs to be closely watched. His semblance has granted him some very dangerous knowledge. I don't know if we need to move against him, but for now, he needs close examination."
We now come to Beacon Grand Hall, and Gilgamesh looks over his team. Pyrrha Nikos, his partner in this, and his partner for the next four years. Unless he allowed the boring block of flaming wood to destroy the school, but his new morals made that plan uncomfortable and he shelved it for later examination. He then looked at the rest of the newly dubbed Team GRPN. He sighed and brought a hand to his head as he nursed his wine and Enkidu wrapped Nora's mouth shut so she'd stop making noise. And the rest, was silence.