Just a one-shot xover I wanted to do between Tsukune and Kaneki. And...there are some changes, I tried to make them...easy to understand...make sense I guess? Just...I'm sorry if this isn't exactly to your liking, but...I like how I did this.

He didn't quite understand it.

Tsukune wasn't feel like his normal self. He couldn't figure out what was off, but he felt the desire for something that felt very familiar, yet not. The craving for the unidentifiable object burned away in his stomach, making it all that much more intense. Tsukune did have an idea that it was Moka's vampire blood that could be causing it. There was only one time he could recall he ever felt this way before; the last time was when Moka got hurt and he saw her blood. He remembered that time well, he had spaced out on accident just by the sight of it.

Ignoring it for now, Tsukune took a drink of water to relieve some dehydration before heading out to meet up with his friends. They were headed to the human world for a small trip away from the school. He couldn't remember exactly where they were going, but he knew it was somewhere near one of the universities that was in Tokyo. The partial ghoul was concerned that Kurumu and Mizore would get in a fight while they are there, but at the same time he knew it was inevitable. It's a wonder that they even got to come along on this trip. After gathering some of his things, he didn't even bother putting on the school's green jacket anymore recently. He ran out to the bus stop, not surprised to see that his friends were already there, waiting for him.

"Tsukune!" Kurumu cried out, tackling him in a hug. "Let's spend lots of time with each other in the human world!"

"Uh, ok…"

The bus pulled up a moment later to which they all filed into. Tsukune found himself sitting next to Moka, much to the other girls' dismay, but that was to be expected from them. However, his thoughts from earlier resurfaced and he tried to focus on anything but everyone while Ms. Nekonome warned them all to be on their best behavior. As if that would ever happen. They honestly couldn't go anywhere without there being trouble.

Tsukune gazed out the bus, ignoring the bickering and chatter between his friends. His brown eyes watched as they passed through the tunnel that lead to the human world. It was always interesting to watch as they left the barrier that held Yokai Academy. The peaceful scene proved effective in having Tsukune forget about the strange impulses he was feeling, but at the same time he knew it was there, tugging gently at him. There was no way he could help it for now, he didn't even know what it was; however, glancing back at his friends a couple of times made the desire grow slightly stronger. Slightly tired, he rested his head against the window of the bus and closed his eyes.

The next time Tsukune opened his eyes, he recognized the area as the Nakano ward, slightly close to Nerima ward. That's when he noticed that the next ward was where they were headed. He supposed that the point of this was just to get away from the busy area rather than be lost in it's chaos. The bus pulled to the curb, allowing the students to exit.

Kurumu stretched. "Man, sometimes being stuck on a bus for a little can be hell."

"It wasn't that bad," Moka chimed in with a small smile. "It was a peaceful ride."

"Unless you count Yukari and Kurumu fighting peaceful, then yes, it was very peaceful." Mizore walked up, holding on to the lolipop in her mouth.

"Anyways!" Kurumu latched onto Tsukune. "What do you want to do first Tsukune?"

Tsukune blinked in slight surprise before letting out a small, nervous chuckle. "Well...there's not much to do in this area...it's rather peaceful."

"Then let's go find something to do together!" The succubus grinned as she tried pulling him along.

Yukari frowned and started to hit the other girl a bit, knowing that it was a bit to open to use any magic on her. "Let go of Tsukune! I'm sure he doesn't want to go with a bigot like you anwyays!"

"Oh of course he does." She let go, turning to Yukari with a small smirk.

Mizore looked over at Tsukune, walking up to him. "C'mon Tsukune, let's leave them to fight."

"Mizore!" Moka shouted as she watched the snow-woman start to pull Tsukune away.

A soft sigh left his mouth as he gazed over at his friends. In a way, it was a mistake. The impulse that laid dormant when he got off the bus increased drastically. He didn't even catch himself staring at the soft, tender flesh of the girls for a moment. He pulled away fro Mizore suddenly, causing her to blink a bit. Kurumu and Yukari paused in their bickering to look at Tsukune as well.

Tsukune's eyes darted between his friend's faces and their skin before he turned around, taking off in a panic. He could hear his friends calling after him. He wasn't sure why he ran off, but there was something in the back of his mind that told him to. He ran for a while, coming to a stop so he could catch his breath. Tsukune gazed around for a moment, trying to figure out how far he ended up. His eyes caught the sight of a random store and then something in the window.

A book. The former human looked at the book, narrowing his eyes before they widened quickly. Ghouls. That was what he got from the title of the book and it made him stare, from clarity and shock. Ghouls, the very thing he was and trying to prevent through the holy lock that remained clasped around his wrist. But the impulses now made sense. Tsukune didn't want to accept it, but he knew what the once unidentifiable object he was craving now. It wasn't just blood, but flesh as well. He looked around, noticing just a few people around, but none of his friends. Yet, his eyes had wandered back to the people around him. Human flesh. He looked back at the window, his eyes widening at his reflection.

Both of his eyes had taken the vampiric look he was growing used to, however, his the red in his right eye was more vibrant and the white sclera of his eyes was replaced with black. Frightened, Tsukune ran off once again, keeping his head down to avoid eye contact with any of the humans around. He managed to find an empty alleyway and retreated inside it, taking the opportunity to look at the Holy Lock. It wasn't damaged in any way, so what was happening confused him. He rested on the ground, his body shaking with the growing craving of flesh.

"Hey..." A voice called out, making Tsukune freeze in fear. He could smell the scent of a human, but...also of something else. "Are...you alright...?"

"S-Stay away from me." Tsukune averted his entire body away from him.

His ears picked up the sound of footsteps coming closer. "You...You look like you need help..."

Slowly and hesitantly, Tsukune lifted his head to meet the eye of another male. He first noticed the eye patch that covered his left eye and the slight fear that was showing in the revealed one. He knew that the man had seen his eyes. "Y-You're...a ghoul...!"

"I..." The former human looked down, closing his eyes as his body continued to shake in place. He was afraid, afraid of what was going to happen at this point.

The other male gazed down at Tsukune, any fear that he was feeling briefly disappeared. He was reminded of himself. "Hey...you look bad...come on...I can get you some help. Just...you gotta keep your head down for a while."

Tsukune sat there for a moment, considering the offer. However, he didn't understand why the other was helping him if he knew what he was. After a short while of deciding what to do, he nodded as he stood up, just a bit unsteadily. The other smiled slightly. "Great...I'm Kaneki Ken."

"Tsukune Aono..."

Kaneki led the other to a coffee shop nearby, by the name of "Anteiku". He walked in, slightly supporting Tsukune inside of the building. Luckily there wasn't any customers at the moment. Everyone in the cafe watched with confusion as Kaneki sat Tsukune down on a chair, turning to Touka, who while confused, didn't look very happy. "Who's this?"

"His name's Tsukune...I found him on my way here in an alley," Kaneki exlained. "He...he's a ghoul too..."

At this, Touka walked up to the weak Tsukune and lifted his head up. She blinked at the sight of his eyes, instantly recognizing one but the sight of his vampiric look was strange to her. She turned to Yoshimura, who disappeared behind a door, before looking back at Tsukune. "We're getting you food."

"Food?" Tsukune questioned a bit and looked at her before he got the chance to look at Kaneki. "Who...are you people?"

"...We're ghouls too..." Kaneki replied, a bit unsure.

In a way it relieved him, but also it was quite a bit nerve-wracking. It was certainly nice that they were helping him, he knew that he would be in trouble if they were human instead. Tsukune gazed around the cafe, a soft smile coming to his lips at the scent of coffee in the air. His eyes turned back to Kaneki and Touka who was chatting among themselves just a bit. He watched curiously as Yoshimura walked back in, handing a small package to Touka. A faint smell reached his nose as she walked up to him. "Here."

"W-What...is it...?" He had a guess at what it was, but he didn't want to think that it was true. He just stared at the package that was held in her hands.

"Just eat it." Touka groaned, thrusting the small package into his hands.

Tsukune gaped a bit at the package, his eyes widening slightly. "N-No...I can't..."

"Then don't blame me when you're in pain." With that Touka walked away from Tsukune and Kaneki and went back to her work before the former humans walked in.

Kaneki looked over at Tsukune before sitting in a chair across from him. He watched the other stare at the package until his attention went to the other's eyes. They were strange to him, other than the normal ghoul eye, the left one was most definitely strange. Not once had he seen another ghoul with that sort of eye, but he also didn't know of any humans who could have had it either. It was neither human nor ghoul. He figured he might as well ask him about it.

"Tsukune?"

Tsukune looked up from the package, over at Kaneki. "Yes...?"

"I was...uh...curious about your eyes...your eyes, the pupils...I've never seen any eye from humans or ghouls look like that..."

"Oh," Tsukune blinked, remember when he saw his eyes from his reflection in the window. Both of his eyes remained like a vampire's. "Well...I'm not exactly your type of common ghoul..."

Like me, Kaneki thought as he cocked his head to the side. His eyes examined the other, slightly in wonder how. He did find it comforting that he wasn't the only human-ghoul. Unless he wasn't human, perhaps he shouldn't be quick to jump to conclusions. Kaneki took his chance to talk with the other, wanting to know a bit more about him. Stranger or not. "Ah, how old are you, Tsukune?"

"Oh, I'm sixteen." He answered with a smile.

"Really? I'm eighteen! You're just a year younger than me." Kaneki let out a small chuckle. "I go to Kamii University. "

Tsukune blinked. He remembered some of the universities around, Kamii being one of them. "That's cool Kaneki."

"What high school do you go to?"

At that, he froze. Was it alright for him to talk about Yokai Academy? His mother and father knew, so did his cousin, but no one else truly knew about it or even knew it existed. After all, how could they? It as a school for monsters. However, Tsukune supposed it would be alright since they were all ghouls in the shop; perhaps they would know of the school. "I...I go to Yokai Academy."

"Yokai?" A small pang of panic hit Tsukune from the uncertainty of Kaneki's voice. "I've never heard of that school before..."

There went his hope and courage. He frowned and looked down, unsure whether to say what the school was about. Perhaps he could avoid revealing it. He forced a small smile and gave a faint shrug. "It's not a big deal, nothing too important."

"Really?" Kaneki tilted his head.

With a small sigh, Tsukune looked at the other. "It's...a school for monsters."

Kaneki blinked at that. He wasn't expecting such an answer, though...he never heard of any monsters other than ghouls. Any other monster was just urban legends or stuff you would find in a book. Was it true? A school for monsters? If so, how did such a school exist since it'd be nearly impossible for the monsters to live among humans such as how the ghouls did thanks to how the looked human. Kaneki tilted his head a bit at Tsukune, opening his mouth only to say one word, "...how?"

Tsukune had a small smile. "It's not a part of the human world...it exists in a different plane...it's...meant to teach monsters how to live among humans."

That was an interesting idea, Kaneki had to admit. "So...do monsters have...human appearances?"

The other nodded. "Yes, they're taught to stay in their human forms..." He paused, glancing down for a moment at the package that he still hadn't opened. "I was sent there by mistake...but I didn't realize it at the time."

"Is that...how you've become a ghoul?"

Another nod. He explained how he made friends with a vampire and a few other monsters, which it all led to trouble in the end against a Yōko, demon fox. He also said how he was saved by his vampire friend numerous times after thanks to the blood she had given him. This was surprising to Kaneki since he only knew that he became a ghoul due to the organ transplant. He didn't know of a different way to make ghouls, however, that explains why Tsukune's eyes was different. "That...is interesting."

Tsukune shrugged, shifting in his seat. "I suppose..."

Kaneki watched the other, noticing how he was slightly shaking in place. In a way, he felt bad for the other, the pain from not eating flesh or...blood since, from what it sounds, being half vampire. Of course, he himself wasn't too fond of the idea of eating human flesh, but he knew it was necessary for ghouls. Though he was against it, he could tell it was better than pain. "Tsukune...maybe...you should eat...We could give you a room for some privacy if needed?"

Tsukune's eyes returned to the small package he was given. His very being called for it, but his mind was against it. He looked back at Kaneki. "I'm...still not sure."

"It's alright, I understand how you feel." Kaneki smiled, giving a light, sheepish chuckle.

The Yokai student stared at Kaneki before he looked at the package one more time, rolling it around in his hands. He knew there wasn't any other option at this point, Moka wasn't around to help him. "Alright."

Kaneki smiled, a bit sympathetically, and stood up from the chair. Tsukune stood up as well, following him upstairs to a separate room so he could have some privacy. He wanted to get this over with but without possible prying eyes and any interruptions. God knows he'd be interrupted if he waited till the girls found him.

He walked back into the cafe almost an hour later. Kaneki walked up to him, holding a cup of coffee for him. Tsukune took it with a small smile. "Thank you."

"Of course."

He took a drink, smiling at the wonderful taste. He wasn't exactly one for coffee, but this wasn't bad at all. "This is good."

"Thank you, glad you enjoy it." The other gave a small laugh.

Tsukune was happy Kaneki came across him in the alley: he would have been in pain and scared if he hadn't. Here, he felt calm, at peace. He gave his normal, friendly smile at Kaneki. "Honestly, thank you for everything."

"No problem...If...you need more, you're welcome here at Anteiku any time." Kaneki gave a small bow.

"I'll only be able to come every once a month though...that's how often the bus runs." Tsukune explained. "I'll come back eventually."

"I-If that's the case! I can ask Yoshimura to get you a small supply-"

"It's alright, my friends will help me."

Kaneki nodded and watched Tsukune leave the cafe after exchanging a "good-bye".

So...I hope that this alright, I know it goes off of the timeline and would change a few things from the original manga for Rosario, but...I just wanted to do this for fun and...I like both of these characters. I...know I don't explain exactly how Tsukune is a ghoul from the Tokyo Ghoul version, just...I'm not that creative. Sorry if it's not exactly what you like ^^; Uh...but...I guess if you want more, I can write more for this crossover...just...it'd be a while, at least until I finish one of my other Xovers.