Ok guys, sorry I took so long but I wanted to get this story to make more sense. A few details changed and some other things you must read to know—but the plot is still the same, made it bloodier and added more action (at least I hope I did, but you be the judges of that). So please feel free to comment back on how it came out. Any questions, feel free to pm me about it. Without further ado, enjoy, read and review!

In case you're wondering the reason I made this type of crossover is that, in my point of view, these three seemed to fit for three main reasons:
First. In all three, demons are present. Those that are new (NG) as well as those mentioned in legends & folklore (DMC & R+V). (I did plenty of research on those two.)

Second. They unfold their stories in the Demon World, or sometimes the human world.

Third. They all seemed to fit on this particular world. I mean, there're demons, death and evil, among other things they might share.

That being said, I give you the disclaimer: I don't own Rosario + Vampire, Devil May Cry and/or Ninja Gaiden!

Demon Chronicles

Chapter 1:

"Dark Storm"

"Our life is made by the death of others." Leonardo da Vinci

It was like any other year at the Monster Academy. The atmosphere of the entrance ceremony was bursting with joy; students, both old and new, were so happy to be there. Some clouds hovered in the sky, covering most of the sky's blue, but they showed no threat of precipitation.

The school for monsters, Youkai Academy, was happier than ever. The students were returning to classes after enjoying their vacations. They were getting together with their friends and classmates. All of them, without exception, were in human form. That was one of the most important rules of the place. Another one was that no human could enter the academy. That rule had been broken long time ago though, when a normal human teenager started to be a student in Youkai Academy. Not only that, he even succeeded in surviving his first year there as he became friends with some demons that studied in the academy.

His first friend inside the academy was a cute vampire, Akashiya Moka. After that he knew a very huge breasted Succubus, Kurumu Kurono, a stalker snow woman, Shirayuki Mizore, two powerful witches, Sendo Yukari and Dojo Ruby, and a pervert werewolf named Morioka Ginei; they all were members of the school's Newspaper club. Together they fought against powerful and evil enemies. Their biggest battles were against the Academy's Public Security Committee's leader Kuyou, and after that, they defeated Kaneshiro Hokuto, the head of a group that tried to destroy the barrier that separated the human world from the demon world, between other things.

Even after he survived all those dangers Tsukune decided to return and study his second year in Youkai Academy, with his friends. The first semester was pretty disturbing, even from the first day, the day he met Kokoa, a very energetic girl that turned out to be Moka's younger sister, another vampire. After some time, they found new enemies and very dangerous things began to happen in Youkai Academy, but what else could be expected from a place full of monsters?

Aono Tsukune, the human student of the academy, was walking through the path from the dormitories to the school. At first it really was a scary image, but as time passed, he grew used to it. The path of lifeless dirt was surrounded by leafless trees as if it was a permanent autumn season, just like the outer limits of the academy—something like this, of course, was pretty much normal in a school specifically created for monsters and not humans.

Nevertheless, it was full of students who were reunited with their friends, talking and laughing happily. The brown haired boy was eager to see his friends again. He couldn't avoid the smile that adorned his face when he thought about it, and a light red tainted his cheeks when he remembered a certain pink haired girl.

"Tsukune!" The boy turned around so he could see who was calling him, but his vision went black as he felt something warm and soft pressed against his face, blocking his breathing. 'Kurumu.' He thought. "I'm so happy to see you again! I missed you so much!" Kurumu said, tangling her fingers to the human's hair, bringing him closer to her chest. Tsukune began to go dizzy for the lack of oxygen; if he didn't pull apart he was going to pass out. The blue haired Succubus' hold lost its force, after a metallic bang was heard.

Tsukune filled his lunges forcefully, trying not to fall. He looked to Kurumu. "That habit never leaves you." He murmured. He noted the presence of Yukari, the young witch that saved him by knocking Kurumu unconscious. "Good morning, Yukari." He greeted.

The witch looked at him smiling before running and locking her arms behind his back, hugging him. "Good morning, Tsukune. I've missed you!" The girl said, looking up at him. The boy smiled, but an ice chill went down through his spine, erasing his smile. Tsukune turned, founding Mizore, who was watching him from behind a tree.

"Good morning, Mizore." The human greeted, making the snow woman blush and nod timidly.

A killer Youki surrounded them. Kurumu was back in the realm of consciousness and wanted revenge against the witch. "You…!" Kurumu grabbed Yukari by the neck, shaking her violently. "How dare you to do that to me, flat-chested girl!"

"I had to! You were suffocating Tsukune with your udders, milky cow!" yelled Yukari, pinching the Succubus' cheeks. Tsukune sighed as he looked the scene.

"They really never change." He said.

He felt someone behind him and turned, founding the emerald gaze of Moka. "Good morning, Tsukune." The pink haired vampire greeted, smiling timidly.

"Good morning, Moka. How were your holidays?" The human said, stepping closer to her.

"Very well, thank you. I had some complications with Kokoa, though, when she…" the look in Moka's eyes became hungry and a blush covered her cheeks. "That… scent…" Tsukune was lost in Moka's emerald orbs, his own blood flowing towards his face.

"Moka…"

"Tsukune…"

"Moka…"

"Tsukune…" the vampire attached herself against him, holding the human's shoulders.

"Moka…" Tsukune lowered his head lightly, filling his nose with the scent of her hair. His eyes widened when he felt something pinch into his neck. "Capu-chuuu."

The scream of Tsukune made Kurumu and Yukari to stop fighting and turn towards the scene. They both sighed; Moka was sucking Tsukune's blood… again. Old habits die hard, apparently. "You pervert!" yelled Kokoa. Moka retracted her fangs from the boy's neck and licked the wound to heal it. Kokoa was standing in front of them, with her killer intent eyes pointing towards Tsukune.

"G… good morning, K-Kokoa." The boy stuttered.

The younger vampire's eyes looked away as she took Kou, the little bat that was perched on her shoulder. Kou transformed into a huge combat mallet. "I'll kill you…" Kokoa said, her fury made her body shake. Tsukune swallowed difficulty.

"Kokoa… I…" he fell silent when he saw Kokoa running towards him.

"I'll kill you and then I'll bring back my big sister!" she brought the mallet down, forcefully. Tsukune was able to avoid the attack barely, making the mallet to smash against the dirt, raising a big cloud of dust.

"Kokoa wait!" pleaded Moka, but Kokoa wouldn't listen, raising the mallet again ready to kill the human who was stealing her sister from her.

A loud clang was heard and Kokoa stopped. Her eyes rolled to the back of her head as she fell to the ground, unconscious. "Kokoa!" The pink haired vampire rushed towards her sister as Kurumu and Yukari were running to Tsukune's side.

"Are you alright, Tsukune?" Kurumu asked. The young man nodded with a smile on his face, scratching the back of his head.

He looked to Yukari. "Thanks again, Yukari."

"You're welcome." The witch said, smiling. In that moment, Moka came to them with Kokoa in her arms, still unconscious.

"How's Kokoa?" Tsukune asked.

"She's fine, just unconscious." Moka replied, and then looked to Yukari.

"Did you really have to hit her so hard?" she asked.

Yukari lowered her head, ashamed. "She wanted to harm Tsukune." She said, in an apologizing tone.

"Don't be so hard, Moka." Kurumu supported. "That wouldn't have been necessary if you wouldn't have been sucking Tsukune's blood again." Both Tsukune and Moka blushed, making the rest of them laugh. The human and the pink haired vampire smiled timidly, looking into each other's eyes, before joining the laughing. It would seem their twisted friendship gave them more joy than a normal one; then again, what's normal in the monster world?

All of a sudden, the clouds that hovered over the institution grew thicker and darker, covering the sky and enveloping the academy in darkness. When this happened, everyone started to wonder how the clouds could change their status so abruptly. Sequentially to this, a threatening aura began to emanate from it and the wind's once caressing sensation changed to that of a soulless, chilling one. One could say that it was the breath of Death itself coming out of the Gates of Hell.

With the few remaining light that the cloud let in, the teachers instructed everyone to enter the gym as a safety measure. No one realized that the events to come would resemble such dark and horrific proportions. Everyone was staring outside through the windows when suddenly the dark cloud shattered the terrifying silence with a powerful spectacle of crimson lightning and fierce roaring thunder that echoed straight into the deepest corners of the students' hearts and planted a ghastly terror in their souls. Tsukune, Moka, Kurumu, Mizore and Yukari were also captured by the thunderstorm's grim nature.

"How can this be happening? Something's strange." Tsukune commented as he stared out a window, seeing as the sun was now completely blocked out and the academy was plunged into darkness.

"I think the same. The only reasonable explanation I can come up now with is that something or someone caused this; something or someone very powerful." The young witch enlightened.

"Tsukune, I'm so scared!" Kurumu said as she hugged him a crying expression and started to suffocate the living daylights out of him yet again.

"Stop it, you cow! You're going to kill him!" Yukari demanded as she managed to get her off the nearly breathless boy. The pink-haired vampire gave a slight chuckle after she saw this and Mizore put away an ice kunai she was going to use against the voluptuous succubus.

They were startled a little as they heard a continuous tapping noise on the gym's metallic roof, but when they looked out the window again, they noticed it had started to rain. Tsukune was about to take his attention off the rain when he noticed someone's silhouette outside. The male felt it wouldn't be a good idea to go outside because of the rain, but the real reason he hesitated was not because of the pouring rain. It was the storm's evil atmosphere that gripped his heart with fear. Regardless of realizing this, he convinced himself that he had to help that person out there and the grip in his heart loosened enough to find the courage to go out and aid whoever was out there.

"I need to go out and help that person." said Tsukune. The girls looked out the window and saw the same thing he did.

"No! It's too dangerous." Kurumu protested while holding his arm tightly.

"The cow's right! It's too risky to go out, especially with this strange rain!" Yukari added. The succubus popped a vein in her head when she heard the witch's comment.

"That doesn't matter, we have to help that person!" replied Tsukune.

"You're right, Tsukune. We have to help whoever's out there. I'll go with you." said Moka. "Thanks. Ok girls, you stay here, we'll be back soon." Tsukune said.

"How come she gets to go with you instead of me?" shouted the blue haired girl.

To this, Tsukune replied "There's no need to risk everyone. Besides, if we run into trouble, I'll take Moka's Rosario off and she'll fight of any enemies." Kurumu forced herself to agree.

Tsukune and Moka worked their way through the many students until they reached the door and walked out into the rain, in search for the person the boy claims he saw earlier. "I can't see anything with no light, and this rain is only making it worse." Tsukune said as he covered his head with his coat. A lightning bolt roared its thunder, scaring them both for a moment.

"Have faith, Tsukune. We must be strong and find this person." Moka encouraged him, getting a confident nod in reply.

A few moments later of searching through the rain, they found who they were looking for lying on the ground and ran quickly to help out. When they reached that person, they noticed it was a girl around 17 years old. She was 5'3", with long blood red hair that reached her mid back, purple eyes and a beautiful flawless face. She had a gorgeous sexy body: long legs, a curved slim figure, soft pale skin and a bust that was as big as Kurumu's. She was wearing a white sleeveless silk dress that reached her mid thigh and black shoes. Hanging from her neck with a silver chain was a silver gothic-style amulet that had a huge fist-size ruby embedded in it.

"Are you ok? Can you walk?" Tsukune said to the girl.

"No. my ankle's hurt and I can't walk" the girl said.

"Don't worry; we'll carry you into the shelter." Moka responded.

"Thanks." the girl in white said.

Just as they were preparing to take her to the gym, the cloud's threatening aura intensified and a fierce crimson lightning bolt, more powerful than the previous ones, shot out with the fiercest thunder and hit a spot a few feet away from their position, jolting them in frightening surprise and knocking them on the ground ass-first. They turned to look at the spot where the lightning fell and saw a small smoking crater had formed from the impact.

A few seconds later, something started to materialize from that spot and emerge. When Tsukune, Moka and the girl saw this, a tremendous chill ran through their bodies. What came out of the crater were dozens of creatures no more than 4.5 feet tall, had one eye, blue lightning-like hair, a hole in their torsos, huge claws, their upper half was pink and the lower half was blue. These were lesser fiends known as Shadows.

Kurumu and the other girls witnessed what had happened at the spot where Tsukune and Moka were and started panicking, fearing for their friends' lives. "RUN! Get out of there!" Kurumu yelled in tearful desperation as she banged the window with her fists.

"We can't get to them in time to help them. We're too far from them." The snow maiden said with concern and anguish overflowing her expression. They could only watch in horror as their friends were facing mortal danger. The situation for the three girls only grew to worse when they lost sight of them and the creatures because the storm's thickness blocked out every glimmer of light.

The fiendish demons started to approach closer and closer to the trio in front of them, with claws thirsting for blood. Tsukune, Moka and the girl became fearful for their lives when they saw the demons close in on them. When the boy looked at one of them in the eye, he saw bloodlust and a blind disposition to kill. Tsukune tried to take of Moka's Rosario in order to reveal her inner self so that she could protect them from their incoming attackers but it was all in vain, the rosary simply wouldn't budge. Things were pointing to the fact that they were meant to die this day at that spot by the hands of the lightning-born demons. Their lives were about to be over and done with.

One of the demons raised its claws ready to strike at them. The three youngsters felt their lives pass right in front of their eyes at this. 'I can't believe it'll end like this…' Tsukune thought as he shut his eyes closed in fear. The creature shot its arm forward when in that very split second…

SLASH!

The creature stood still on the spot, not moving an inch. Wondering why his death was taking so long, Tsukune opened his eyes and looked up to see what was delaying the creature. He found the demon's claw pointed right in his face at point-blank distance. He shrieked lightly and crawled back a few inches. Moka and the girl saw this and started to wonder the same thing he did when a couple seconds later the demon started to split in half, gushing blood as the three of them. Their faces grew pale in horror when they saw the sliced-up corpse lying in front of them.

Tsukune and the girls regained their senses a couple seconds after what happened and started to look around for the cause of that creature's death. When Moka looked behind her, a lightning bolt briefly illuminated the area and saw something. "Guys! Look over there!" She shouted as her finger pointed behind them. They turned around to find a tall figure clad in darkness. The trio wasn't able to see who or what it was, or what its intentions were. All they could hope for was that it would help them survive the present threat.

There you go guys. Thanks KlausVClaireR for your help! Keep reading to find out what happens and review please!