Death Rides on Swift Wings: a RWBY x Male Reader x Highschool DxD Story

EX: Crossover Extravaganza!

Hey everybody, it's your friendly neighborhood Author Man here!

I really should have made this it's own book. It's going on way too long. If you would like me to put this in its own book, tell me.

Other than that, enjoy the finale of my side project. I know not a lot of you like it, but I do this for me, so suck it. Tomorrow we'll be back to normal schedule.

See ya in another life Brotha!

*Third Person POV*

The Coven of the Lost Souls and the Y/ns charged at each other, swinging blades and fists. Gremory, in his balance breaker, charged at Darkness, tackling him to the ground. Gremory slammed his fists into Darkness' face repeatedly, crushing it to a liquid.

The liquid reformed behind him, and when Y/n turned around to punch again, he was sent flying by a single punch. A chunk of his armor was cracked off and sent flying, revealing the left side of Y/n's face.

Y/n tried to direct himself back with his wings, but Darkness appeared in front of him and punched him again, this time sending him flying downwards. Darkness appeared under Y/n as he fell, and grabbed his tail, throwing back towards the others.

Y/n hit the nothing that was the floor, and looked behind him. Each of the Y/n's were losing their battles,pushed back into a single group, as the Coven of the Lost Souls closed in on them.

"Don't... you... see..." Darkness said, landing nearby, "You've... Lost."

Y/n chuckled a bit, trying to push himself off the ground. He smirked a bit, leaning on Ascalon.

"Sure, that might be true," He said, "But one thing I've learned is that if you don't succeed, you're not hitting hard enough."

"Humans..." Darkness said, "Such... interesting creatures... You... Never learn..."

"Technically, I'm half devil."

"I know..." Darkness spread his arms, "Who do you think created you?"

"What the hell are you talking about?"

At this point everyone had stopped fighting, and turned to Darkness. They all listened, as he began to laugh.

"That foolish filth... the man you call... Author Man," He scoffed at the name, "He couldn't write to save his life. The true... writer on the universe... is me."

Everyone exchanged looks, and then looked back to Darkness, who continued preaching.

"Each and every one of you... is my children..." He spoke calmly, "I am what makes you special. I give you your friends, your powers, your children, your families, and everything else you have... I am your lord, and you... You should be my greatest knights... My dimensional warriors."

The Y/ns exchanged looks, ranging from worry to fear to acceptance. They were all confused, and had no idea how to take what they had just been told. Y/n Gremory looked down to his feet, and then back at Darkness.

"If this is true," He said, "Then you have given us the greatest moments of our lives. The time spent with our families, friends, and everyone we've met. And for that, we must thank you."

"Well, of course..."

"But that also means you're responsible for our worst moments!" He yelled, readying Ascalon to strike, "You're responsible for my family abusing me!"

"You're responsible for my sister's murder!" Lugia yelled.

"You're responsible for my family feud!" Giratina growled.

Ryuk pulled out his scythe, "You're responsible for my mom's death!"

Ink began to fly around Drew, "You put my dad in a wheelchair and killed my sister!"

"And for that!" Gremory yelled, "You will pay!"

Gremory charged at Darkness, raising his sword above his head. He brought Ascalon down, and Darkness blocked it with his arm. Darkness scoffed, and then sighed.

"Fool... this won't... change anything..."

"I know," Gremory said, "GO FOR THE KEYHOLE!"

The Y/ns all began to run at the keyhole, as the Coven tried to stop them. Y/n Lugia grabbed Ophis and Yveltal, tackling them to the ground. Y/n Ryuk then tackled Salem, taking her the the ground and punching her across the face. Evil Drew then ran at his counterpart, jumping into the air to tackle him.

He was stopped as something grabbed him out of the air. He turned to see that Y/n Giratina had grabbed his leg, and swung him around in a circle, sending him flying.

"GO KID GO!" Giratina cheered.

Y/n Drew ran up behind Y/n Gremory, and leapt up onto his back. He pushed himself into the air, and launched towards the keyhole.

A black key appeared in his hand, and he quickly shoved it into the keyhole, turning it.

"NO!"

Darkness began to get sucked into the keyhole, trying to grab anything that would keep him safe. The fighting stopped, as he disappeared with the keyhole.

"Coven," Evil Drew said, "Let's get out of here."

Dark portals began to appear, and the Coven of The Lost Souls walked through, disappearing.

[Timeskip]

"Alright, one portal home, coming up." Y/n Gremory said.

He read the incantation, and a portal opened up. Y/n Lugia waved, before jumping through.

"Bye!"

When that portal closed, Y/n turned to Ryuk and held out his hand.

"See ya 'round Gremory," Ryuk said, "It's been nice."

"I don't think this is the last time  we'll be seeing each other."

Ryuk let out a deep breath, "Yeah, me too."

Gremory opened another portal, and Ryuk jumped through, saluting behind him. Gremory then turned to Y/n Drew, and they stood there in awkward silence.

"Sorry about what happened earlier," Gremory said, "I hope this makes it up."

He held out a card with a glyph written on it. Y/n Drew looked it over, and then asked, "What's this?"

"It's a summon card," Y/n Gremory answered, "Put a drop of blood on the card and say my name, I'll be there."

"Thanks, Gremory."

"Least I could do."

Y/n read the incantation again, and a portal opened up. Y/n Drew jumped through and the last two Y/ns, Gremory and Giratina turned to each other.

"Let's go back to your dimension," Gremory said, "I'll get Ophis and go home."

"Oh come on!" Giratina said, "You can't go home that quickly! Come on, I'll take you out for a drink!"

"Nah, I should get home, my sister is going to kill me."

With that, he read the incantation, opening a new portal. They jumped through, and in a flash, there was no one.

Except for a flash of light, leaving a single person behind. This person looked around, before looking up at where the keyhole once was.

"Our battle is never over," He said, "Is it?"

"You tried to destroy my worlds," The mysterious man said, "You tried to corrupt my readers, among other things. You're lucky I can't kill you yet."

"Trust me, I wish I could."

The mysterious man turned and began to walk away, before laughing.

"After all, I'm your friendly neighborhood Author Man."