Disclaimer: I do not own Kore Wa Zombie Desu Ka or Rosario + Vampire.

Prologue

"What was that for?" Tsukune Aono called out as he came face to face with a very irritated looking girl.

"That was for appearing in my dreams again, you stupid pervert," she told him before stalking off and out of the unfamiliar room.

Taking a good look at his surroundings, Tsukune could tell that he was no longer at Youkai Academy. The room looked like a human's room; that at least was a slightly comforting thought. Though the girl that had drop kicked him in his sleep did not leave him with the same feeling.

"What was that all about?" he asked out loud, vaguely taking note of his unfamiliar sounding voice.

Stretching to see if anything had been broken by the girl's brutal attack, he was surprised to find that his body felt as if it hadn't even suffered anything. Intrigued by this development, he proceeded to move his body taking in the feeling of it.

"Definitely not me…" he mumbled as he finished his self-checkup.

Curious to see what he now looked like, Tsukune exited the room in an attempt to find the bathroom, and with it, a mirror. Finding one that seemed empty, he went inside and flicked on the light. Looking into the mirror, he was shocked to see the greying hair and dead look that he now bore. Something had happened to whoever's body he now inhabited and it had left him in this sort of position.

'That doesn't help when it comes to explaining the girl though' he thought to himself.

Deciding that he'd do his best to find some more answers when he could, the seventeen year old exited the bathroom and proceeded back to the room he started in. Finding the obvious school uniform, he slipped it on and headed down the stairs.

"Where are you going Ayumu?" the girl from before asked. "You haven't made breakfast yet and I'm hungry."

Tsukune was sorely tempted to just walk out then and there, but his years with a group of girls and his mother's training told him otherwise.

"Alright, what're you hungry for?" he asked her.

"Miso soup," another female voice interrupted before the first girl could finish.

Taking a look into the room, Tsukune nearly stumbled backwards when he saw the long haired woman. He could feel her animosity towards him already, but at the same time he could also feel a sort of tenderness. Headaches known as his interactions with Kokoa flew through him at that moment as he took in the possibility of her acting very similarly.

"Miso soup, right away," he said cheerily, hoping that this false bravado would work.

"Don't smile you damn insect, it's disgusting."

Tsukune's face fell when he heard that. This woman was worse than Kokoa and she had only said two sentences. Groaning mentally, he was just about to leave and find the kitchen when he heard a tapping noise. Searching for its origin, Tsukune found it from an expressionless young woman wearing armor over her torso as well as on her head and arms.

Looking towards the pen she was tapping with, he caught sight of her notepad. On it were a single set of words 'I'm hungry, ignore Sera'. Unable to stop the grin from returning at this point, he nodded in understanding and began to exit the room again.

'So, the long haired woman's name is Sera. I'll remember that," he thought to himself as he tried to find the kitchen.

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Ayumu Aikawa rolled over on his bed, tightly wrapping the blankets he had around himself. After his most recent adventure with his unlikely group of friends, he had decided that sleeping for a week was going to be the perfect remedy. No sunshine and no beatings (hopefully) would await him as he stayed within his comfortable…

His thought process was interrupted by the ringing of an alarm. Growling in frustration, the teen tried to get a good look at the clock, but couldn't find his usual placement for it. Mentally blaming Haruna for his current situation, he forced himself into alertness, only to nearly scream in shock.

He wasn't in his room. He was not in his room at all. No, this room seemed much bleaker. There weren't many decorations in there, heck; there weren't any decorations in there. It seemed to be an absolutely barren room, if it wasn't for the easily noticeable bathroom, he would've even mistaken it for an infirmary.

"Where am I?" he questioned out loud, once again startling himself. "That's not my voice!"

Covering his mouth, the teen climbed out of his bed, noticing that he was dressed in a different pair of pajamas than he had the night before. Panic shot through him as he entered the bathroom, rushing to look in the mirror, he almost collapsed in shock as took a look at himself. Instead of the greyish hair that he was used to seeing every morning he had very vibrant brown. His eyes had also shifted colors, as they were now a chocolate brown instead of his original color.

"Oh no, this isn't good. Who could've done this? Who did I piss off this time?" he asked the air as he began to pace the small room.

Stopping at the mirror again, he decided that he'd see if he still held his zombie abilities. Maybe he had just been morphed into another person and was having to deal with the effects of that. Yeah, that sounded like a good idea to him.

Focusing, Ayumu tried to up his bodily limits. However, while he did feel power welling within him, he didn't feel his limits rising. Sighing in frustration, he ran his hands through his hair, stopping when he caught sight of the metal chain and lock around his right arm.

"What the hell is this?" he yelled out, eyes wide in terror.

Grasping at it, he felt something akin to numerous warning bells go off. Releasing his hold on the chains, he decided that it would probably be for the better if he pretended that they didn't exist. He would have to investigate them though. Wherever he had ended up, he wasn't going to have help from his friends. This time, it was all on him.

End Prologue

A/N: Okay, so here is the prologue to 'Yes, We Have Switched Bodies'. I'm excited to be writing this as I love the Kore Wa Zombie Desu Ka series (still working through Of the Dead, but I love it nonetheless) and want to get started writing fics for it. For that reason, I'm starting with this crossover with Rosario + Vampire; a series that I have written many fics for and feel like I can do well with the characters. So, I'm starting with this odd crossover. Tsukune and Ayumu have obviously switched bodies, and, with them now interacting with their respective harems, it will be interesting to see how things play out. So, leave a review if you'd like, and until next time,

Nanashi Wanderer