Authors Note: Next modified chapter.

Concern

A few days had passed since then, but everybody could see that Yuuki was not doing well.

Her skin seemed to pale with each passing hour and the normally angel-like patience she possessed was replaced by a very short fuse. She snapped at practically everyone, even Yori and she never snapped at Yori.

Her job as a prefect required her to make sure the girls from the Day-Class didn't bother the students of the Night-Class, but with her new volatile disposition, the Day-Class girls were now even more afraid of her than they were of Zero.

However, everyone who tried to talk to her about it, received the same answer "None of your damn business."

Zero was worried enough to even go to Kaname and ask what he had done.

"What did you do to her, vampire?" Zero barked out.

They were alone in Kaname's Dorm President Office so that they would have some privacy and their conversation would not be overheard.

Kaname almost snapped, to be accused of doing anything to harm his dearest Yuuki was absurd, but he understood that the vampire hunter was also worried by the new behavior the brunette was showing.

"I'm the one who should be asking that question, Kiryuu Zero-kun, I am not the one that keeps on draining her of her blood. And yet you have the audacity to stand there and accuse me of hurting her."

The hunter couldn't help the look of shame on his face. He knew that he could very well be to blame for the odd attitude Yuuki was having lately.

Ever since he first indulged himself to Yuuki's sweet blood he hadn't been able to control himself, he was addicted to the taste of her.

Flashback

"Yuuki…" Zero moaned softly as he plunged his fangs into the unsuspecting girl.

She was just walking away from him when he grabbed her and bit down. He wasn't himself at the moment and he couldn't stop himself.

He bit down as hard as his jaws could muster and he sucked at her neck without restraint.

It was only when she pushed him of her that he came back from the edge, but the damage was already done.

He could see the fear, the hurt and betrayal in her eyes.

He never thought he could feel like this, like he had lost his reason to live. He betrayed the trust of the only person that had shown him love and care and had repaid her kindness with this selfish act of blind thirst for blood.

"I-I'm so-so sorry…Yuuki, please fo-forgive me." his silver hair hid his eyes, which he was sure were still the color of blood.

He couldn't bring himself to look her in the eyes.

"Why didn't you tell me you were a vampire?" was the only thing she said, after a few awkward moments of silence.

"I am not one of those filthy bloodsuckers", but all he got was a disbelieving stare as his reply. She didn't believe him.

"I…I…Yuuki, I'm not…" was all he managed to say before taking off at a run.

He later found out that her adoptive father –Cross Kaien- had told her everything. Kiryuu-kun was once bitten by a Pureblood vampire. The Pureblooded vampires were on the top of the vampire hierarchy and considered royalty by other vampires. Their powers far exceeded that of the noble-class vampires –the so called "B" class- and were strong enough to force respect and obedience out of every undead soul in the vicinity.

But the most fearsome aspect of a pureblood was that their bite could transform a human into a D-class vampire. A human turned into a vampire was weaker than any classes above him and only had the privilege of slightly enhanced strength and speed, compared to normal humans.

But they were the most cursed ones. They were unable to withstand direct sunlight, something which only caused discomfort to the higher classes and they would all someday succumb to the darkness of their thirst. And once that happened they would fall into the abyss known as level-E.

A level-E was the lowest form of vampire. Mindless creatures that could only hunt and devour, no longer capable of feeling guilt, remorse or love, all they did was find prey and drain them dry.

Kiryuu Zero was on the brink of becoming a level-E, all because he was bitten by a Pureblooded vampire that had killed his entire family.

And now Yuuki knows the truth, Zero would become a Level-E vampire and he had just lost his last bit of human dignity.

End Flashback

Both men were staring at each other, one with shame in his eyes mixed with concern, the other concern with a slight touch of disgust.

But they didn't need words for them to come to the silent agreement that they would have to join forces to find out what was going on with their dearest Yuuki.

"We need to confront her, and make her tell one of us what is going on with her."

"I would love to say that I am certain she will tell me, but ever since she began…feeding you, she tends to keep things from me. I would give you the world to find out what is wrong with her and to tell me, but this will remain a request. For I will tell you what her problem is if she chooses to tell me." with that said, the Pureblooded Kaname stuck out his hand to seal the agreement.

Zero was slightly taken back by both the fact the mighty Kaname, sole survivor of the Kuran clan (who were once said to be the strongest amongst the purebloods) was requesting his aid and was even prepared to share information with him, sole survivor of one of the strongest and oldest vampire hunters, the Kiryuu's. By all means, they were arch nemeses, not only decided by heritage and their very nature, but also love rivals over the same woman.

Nonetheless, the silver-haired man shook his rival's hand. They needed to work together if they were to find out what is wrong.

Zero nodded and walked out of the room, leaving a contemplating Kaname in his office.

He walked down the extravagant stairs with his eyes focused on the red Persian carpet on which he stepped, taking notice of the beautiful details made by the, no doubt, very skilled crafters.

As his eyes traced a few of the curls, he tried to come up with a way of making Yuuki confess what was wrong or at least get her run to Kaname, his (temporary) ally and tell him instead.

But no matter how hard he thought, he could not think of a plan, which was not odd, he had never been a great strategic thinker, he was more the kill now, ask questions later kind of guy. The hell with the consequences.

'That's it!' maybe if he aggravated her, she would spit it out.

But as he finished his thought he realized that he barely did anything else but aggravate her whenever they met. He was surprised she still…provided blood the few times he needed it.

He was abruptly pulled from his thoughts when he heard a voice call out to him "Zero~" Ichijou Takuma whined in his ear.

"Don't sneak up on me, vampire", the hunter spat at the blond haired boy standing beside him, putting as much venom into the last word as he could .

"Sneaking? I have been standing here longer than you have, you were just standing next to me all of a sudden and I have been calling to you for the last 2 minutes." Ichijou protested.

Zero could only look at him in surprise. Was he so deep in thought that he didn't even notice the second loudest vampire in the entire building, well, except for Aidou Hanabusa maybe?

"Well now that I have your attention…I think, I would like to invite both you and Yuuki to my birthday party next Saturday. We will have cake and some drinks…all you have to bring with you is Yuuki. So, you'll come won't you? Right? Right? Ok, great, see you next week, bye bye."

Before Zero could even let out a growl of frustration Ichijou was gone.

'At least I can tell Yuuki there will be a party where she might see her beloved vampire' he mused to himself.

'Hmm, let's use that to open up a small chit chat and I might surprise her enough to tell me what's wrong with her' for a non-thinker, he ended up with a nice small plan if he did say so himself.

Please let me now what your thoughts are. Only that way I can actually try to improve my writing.