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Reborn in Another World

Reborn in Another World

Valerie inquires quietly, her gaze drawn to the garments' loveliness. “O-hohoho! That's such a wonderful compliment from the Empress,” Sebastian exclaimed, making Valerie chuckle awkwardly as she approached the first gown. She sees the first gown, which is rose gold in color and features a tight bodice with a low-cut neckline, huge ribbon bows down the center front, wide panniers, and is lavishly adorned in lace, ribbon, and flowers. She also considers the second gown, which is yellow and has the same detail as the first but has a lace puff, and the third gown, which is light blue and has the same detail as the first but has a loose lace puff that makes it look like an off-shoulder.
105.7K viewsOngoingAdded to Library 141 Times as rwby crossover
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The Twins He Never Knew

The Twins He Never Knew

the world would simply cease to be rendered. ​She looked at the Amber-Eyed Girl, who was still playing that screeching, nihilistic melody. ​"You want a Sequel?" Nora whispered, her eyes glowing with a fierce, amber light that matched the girl’s. "Then let's give them a Crossover." The Return of the Real ​Nora didn't attack Julian. She turned and threw her crimson flute directly at Leo. ​"Leo! Catch it! Combine the 'Silver Power' with the 'Open Source'!"
2.0K viewsCompletedAdded to Library 71 Times as rwby crossover
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A WRAITH'S TOUCH

A WRAITH'S TOUCH

He tried to tap the books in front of him to stop his emotions, he is fluttered again. "C-Clark, did you saw that? You touched the book. Ben! He touched the book. Do it again, Clark. Do it again.'' Sashi said with so much excitement. Ben looked back to her when he heard Sashi scream. He thought there is something wrong so he came back.. "Do it again Clark." Sashi said and when Clark tried to lift the notebook, Ben saw it on his two eyes. It moves. "Damn, you did it." Sashi said with so much happiness.
4.0K viewsCompletedAdded to Library 110 Times as rwby crossover
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FWB

FWB

It’s one of those moments that’s insignificant in the grand scheme of things, yet it suddenly clicks that this person is going to become irreplaceable. Mateo makes his way back to the living room with Lucas and his little brother Giano in tow. Seeing this, Rob quits trying to goad Alex into a rematch and instead yells for everyone to make their way outside for a game of soccer. The boy practically bounds out the house, most likely assuming he’ll redeem himself. He’s got a good chance – Alex might be stronger, but Rob’s long legs give him a speed advantage. Despite how gangly Rob seems, soccer is his niche.
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1016.8K viewsOngoingAdded to Library 605 Times as rwby crossover
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Lunarcrossed

Lunarcrossed

It’s now been updated to include the murders of Jack and Ava Cross and the kidnapping of their daughters. “…Take me in the moonlight, at our favorite spot near the cedar tree, I’m already wet and waiting for you, my Alpha. I cum just thinking about you inside me. I’m touching myself right now.” “Let me see! Did Beryl send a pussy pic?” demands Wolfe.
102.8K viewsCompletedAdded to Library 69 Times as rwby crossover
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Reborn and Back for Revenge

Reborn and Back for Revenge

In that life, my brother, Callum, had made his first public appearance at the banquet, where he had been officially acknowledged as the heir of the Latham family and Prosperous Group. It was at that very moment that Karen showed up with Calvin, announcing that there had been a mix-up at the hospital and the two boys had been switched at birth. Those watching the spectacle were prominent figures from various industries connected to Dad's business. Thanks to Calvin's obscurity, the incident never made it to the public. In this life, Calvin had actually gone so far as to invite his classmates to the banquet. I couldn't help but wonder if Calvin would regret that decision once he was publicly em
4.8K viewsCompletedAdded to Library 115 Times as rwby crossover
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CROSSROAD

CROSSROAD

“He crossed the rainbow bridge a few years ago.” “Oh, I see,” he answered. “And didn’t he come back?” She raised an eyebrow. Clearly, he had never come across that phrase before. “Um… what I meant was that… he passed away,” she clarified awkwardly and added, “so he’s not coming back, unfortunately.” “Oh!” He cleared his throat and smothered an embarrassed cough. “Yeah, I got it. It’s really sad when they have to go.” “Hmm” She lowered her eyes.
2.7K viewsOngoingAdded to Library 90 Times as rwby crossover
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The Crossbreed

The Crossbreed

“Woah, they are evil! Right, Royu?” “Shut it, Esca!” Royu controls the thunderous lightning and Esca wields the element of water that can freeze her opponents in ice. They run havoc in the right side of the battle field conquering the enemies with no single life remains. While, in the middle of the battlefield, Conri rages in insanity, running wild breaking every bone of his foe… “You’re as mad as ever, Con.” “Rai…”Conri smirks at the maiden behind him. It was Risse, a beast tamer. She can tame anyone just by letting them look at her tantalizing purple eyes.
2.7K viewsOngoingAdded to Library 92 Times as rwby crossover
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Broken Luna Rise Back

Broken Luna Rise Back

It pulsed once, twice, in time with my heartbeat. And then everything around us changed. Our wolves rose to the surface, not completely, but enough that the air itself seemed to vibrate. His wolf, dark and commanding, merged with the golden light that surrounded me. I could feel him every heartbeat, every thought. It was no longer two souls; it was one rhythm, one bond. Outside, lightning split the sky, followed by the roar of thunder. The rain poured harder, drenching the earth as if blessing our union. When Dylan finally pulled out, his breath was ragged, his eyes glowing gold. “It’s done,” he said softly. “You’re mine… and I’m yours.”
1.7K viewsOngoingAdded to Library 50 Times as rwby crossover
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Frequently Asked Questions

RWBY crossovers on AO3 are a rabbit hole I've happily tumbled down more times than I can count! The fandom's creativity is unreal, especially when blending Remnant's chaos with other universes. One standout is 'The Games We Play'—a fusion with 'The Gamer' that reimagines Jaune Arc with RPG mechanics. The way it balances RWBY's action with level-up thrills hooked me instantly. Another gem is 'Blood Rose,' a darkly hilarious take where Yang gets vampirized in the 'Hellsing' universe. The crack-turned-serious tone still lives rent-free in my head.

For something softer, 'Remnant's Reclaimer' (RWBY x 'Red vs. Blue') nails Ruby's voice while weaving in Freelancer lore. It’s got heart and meta humor in spades. Sorting by kudos will also surface 'Crossed Wires' (RWBY x 'Mass Effect'), where Normandy crew dynamics clash gloriously with Beacon’s vibe. What fascinates me is how these fics often dig deeper into RWBY’s lore than canon—like 'Arcanum' (Fate/stay night crossover) exploring Dust as a Thaumaturgy parallel. Honestly, half my AO3 bookmarks are just crossovers that made me yell 'WHY ISN’T THIS OFFICIAL?!'

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