Hey! So this is a brand new story, set in a weird little AU I came up with after seeing an adorable bit of fanart of Ruby as a devil and Weiss as an angel. Now, couple of notes - I named this AU the TrinityVerse AU. You can find more information about it on my Tumblr, namely a better explanation of the races in this story. Secondly, I do not know when I'll be updating this...it'll be when the mood strikes, but I'm going to try my darndest to keep up with this and Red Line too. Thirdly, this is a Pollination fic. Or, for those who don't know what that means, a polyamorous team RWBY fic. Now, before any pitchforks are raised...in this AU, Ruby and Yang are not related. Incest is a complex issue that I simply do not wish to get into, although I admit to having somewhat lax views on it so long as everyone is ok with what's going on. I just had a desire to write a poly relationship, so...here it is. If that's not your cup of tea, thats ok. I don't know if I'll end up writing smut in this. For now, it's staying T, as I'm more about both the relationship and the story I've come up with. This is a short introduction chapter, expect later ones to generally be longer.

The fanart I'm referring to is tough to link to, since it includes what I believe are japanese characters in the url. And well, you know how the link thing goes.

Disclaimer-No ownership of RWBY has I.

When the last dragon wakes,

When the shadow's heart aches,

When the angel lies and the devil cries,

This world will end.

Every human culture on Earth held a similar prophecy, a story about the end of the world. Ragnarok, the apocalypse, etc. Behind the scenes, in the dark underworld that 'others' lived in, they too, had a prophecy. Millennia ago, when man was still waking up to their rulership over the material plane, this simple prophecy was left behind by the greatest oracle of her age, the Dawn Dragon. Her mysterious disappearance left many confused, and over time even her true name was forgotten. Shortly after she left, all of the other dragons fell into a deep sleep, hibernating for time immemorial.

Without the guidance of the great dragons, the sentient species that lived within the other planes began to quarrel and fret, disputes over territory and rights and cultures leading to a devastating war. No world was safe, save the Material plane, left all on its lonesome. Mankind flourished as the angels, demons, and spirits spent years destroying each other and their worlds.

This war lasted for hundreds of years, each side too proud to accept that all they were doing was hurting themselves. It was not until the first dragon awoke once more, and seeing the devastation wrought during his great sleep, the Twilight Dragon became enraged at what they had done. His breath decimated armies as his claws rent the very fabric of the Spirit World.

But dragons are guardians of peace, protectors, not destroyers. When his rage calmed, he realized what he had done. In the sorrow of his actions, knowing he had disgraced his kind and his ancestors, the Twilight Dragon quickly brokered a peace amongst the now cowed species. As soon as he had forced the Treaty of the Trinity through, with the agreement of all three species to abide by its dictates, he flew off into the depths of the Spirit World, diving down as far into its core as he could. Believing he could never be absolved of his crimes, he impaled his heart on his own claw, ending his life in an attempt to atone for his own destructive outburst.

Dragons are tied to the very fabric of the worlds, and the death of one by his own claw rocked the very foundation of them. A pulse of sickly energy flung outward from his being, corrupting sections of the Spirit World entirely, turning them from a lush, green world into a sickened miasma of darkness and plague. Creatures were born of this pain and anguish, dark spirits that hungered for the life essence that existed within all sentient species. These, were the Grimm.

No species suffered more at the hands of the Grimm than Man. Angels, Demons, and Spirits could fight back, could defend themselves. But Man was weak, and did not have the powers that the other species possessed. Knowing that this entire situation was their fault above all others, for warring over nothing, the three came together and made a pact. Together, they would fight back the forces of Grimm, these hungering beasts of darkness. Until the day came when they could find how to revert the changes that created the Grimm, they had to fight. Or so, that was the plan.

For while the war was short lived in the eyes of species who measure lifetimes in millennia, the memories of it persisted. Such prejudices were not so easily forgotten or set aside, and even those newly born were indoctrinated in the ancient hatreds. Time and time again, a dragon would awake and try to bring the species together once and for all, but nothing could seem to absolve the great hatred. In disgust, each of them would slowly give up and fly off into the darkness, never to be seen or heard from again.

It is now the Age of the Last. Of the six dragons who went to sleep when the Dawn Dragon disappeared, five have woken, including the Twilight Dragon. The Midnight Dragon, the Noon Dragon, the Moon Dragon, and the Star Dragon. Each had tried to help, and finally given up. Only the Sun Dragon remains sleeping, as Angels, Demons, and Spirits still quarrel and snarl at each other, even as they try to hold back the never-ending onslaught of Grimm.

But the Grimm grow ever more clever, becoming more and more intelligent, and learning how to blend in amongst their ancient foes…and especially their favorite prey, Man. The Three have also learned how to blend in with Mankind, sending out their best and brightest warriors to hide in the Material Plane, so they can be ready for whenever the Grimm attack.

And thusly, our tale begins…

"…and make sure to keep your tail hidden. Don't let it slip out, no matter how excited you get. And keep the glamour up at all times! Humans freak out when they see stuff like that. And don't do any magic where humans can see! And-"

"Yes Damian, I got it! I'm grown up now, I can do this!" The exasperated interruption came from a tall and slender young feminine demon, her black leathery wings held tight against her back. A lithe, barbed tail swung behind her, sticking out from the back of her ruffled red and black skirt. Two small red horns stuck up in her black, red-streaked hair as she rolled her eyes at the tall, brunette demon before her.

He sighed at her, looking down at her with an indulgent smile. "Ok, ok, fine. I got it Ruby. But do the glamour now please? And hide your tail!"

Ruby sighed. Quickly moving her hands in a complicated series of gestures, red lightning crackling around her hands as the magic took effect. A black pulse of light flung out from her, hiding her obviously demon attributes. Her silver eyes glinted as she grinned up at her mentor, twirling in place. "See! I look just like one of those human girls now!"

Damian snorted at Ruby, ruffling her hair. "Alright, you've been a good student. Just remember, your mission is reconnaissance. If you see Grimm, kill them, but be certain to do it where humans can't see you. If you have to, you can trigger the Displacement, but you know how much of a pain it is to clean up after them, so try to avoid it. And please try not to break your apartment? We've procured one for you at the edge of one of the largest human cities, and your bills will be taken care of, but don't overdo it, ok?"

Ruby grinned up at Damian, practically bouncing as she quivered in excitement. She finally was ready to go out and become a true huntress, an elite warrior in the human world helping defend humans from the darkness of the Grimm! Damian just rolled his eyes at her again, turning away from her to begin the chant to open the gateway.

Ruby watched in rapt fascination as the runic circle on the ground began to glow, each symbol within the outer ring slowly lighting up one by one. As soon as the final circle erupted into blue light, a massive crackling bolt of energy shot down from the ceiling above, crashing into the center of the runic circle. It flared white for a brief moment, before splitting apart, creating a rend in space filled with a deep, swirling purple mist. Taking a deep breath, she stepped forward, but a clawed hand on her shoulder stopped her. Turning around, she met Damian's eyes once more.

"Ruby, your weapon?" Damian nodded to her left hand. Ruby's eye traveled down, noticing that she was still holding her massive scythe, the sleek black blade glimmering in the shifting lights coming out of the portal. With a nervous chuckle, Ruby quickly willed it to disappear. The blade burst into black smoke, spiraling around her for a moment before swiftly coalescing on her wrist, becoming a tiny black bracelet situated on her left wrist. He smiled down at her softly. "Good luck little red. We'll be rooting for you."

Ruby nodded sharply, spinning about to face the portal. With a steadying breath, she strode forward confidently, vanishing into the swirling mists.