WARNI9NG THIS WILL CONTAIN MATURE CONTENT IF YOU ARE UNCOMFORTABLE WITH THAT IN ANY WAY SHAPE OR FORM THIS IS NOT FOR YOU PLEASE BE ADVISED
also kou is more yandere than usual he hates animal cruelty (though he doesn't mind gouging somebody's through the out that hurts ruby..... other than that he's a more non-violent kind of yandere) 

ruby a small neko/human being has been a hybrid for as long as she can remember she also likes dogs though kou himself prefers cats for obvious reasons

'lalalala neko-neko-neko chan" kou sang hapilly not even noticing at first the unreconiseable sent that was on ruby (shus dog the one he asked her to watch which was wet at the moment from playing in the water prior to her watching it)

Kou came over to ruby and noticed the soaking fluff in her hands but it wasn't a cat? "M-neko-Chan~ whats that you've got there?~

Ruby stood still for a moment scarred at what would happen to crystal the dog Shuu helped her rescue when he saw her and him together it infuriated him he thought she was different he thought she was his... no she is his.... And she would see that no matter what it took.

Shuu looked at them and took crystal away as he didn't know what was going to happen before he could leave kou stopped him, "Shuu i want her to keep crystal with her she needs to understand what it means when she's punished.... I wonder how I should go about that today~ hmm?~" he said his breath on rubys neck sending shivers down her spine making the hair all over her body stand up as well as where she has fur~

This earned a satisfied chuckle from the blond vampire he whispered in her ear "hmm I wonder does your body crave my fangs more than it does my touch?" He asked seeing the look of utter horror that kou would consider doing such things especially in front of Shuu sure he got away with it sometimes but other times he couldn't, but most of the time the two  were found cuddling with him this is somthing she preferred  over other things....

Of course he didn't mind cuddling as long as you were always with him or he knew where u were and who you were with he was lenient at times as he should be but one wrong move from ruby and it would all end she usually didn't upset him but the idea of her mothering a dog rather than a cat slightly brought a look of disgust to his face. 

It all went away because he knew what he wanted from her, she knew what he wanted as well, blood her blood the blood that was extremely special because it'd make him Adam in a heartbeat if he played his cards right and that's just exactly what he wanted. 

To be loved to feel wanted. To feel fulfilled even if that fulfillment was minimal touch such as that you get from cuddling up next to somebody warm. 

He yearns to loved by you he loves when you cuddle him kiss him so and he hates when somebody else is leeching away at your attention for him that's what truly makes him tick. There's other things ruby does that have made him mad and have made him punish her in such a way it comes close to intimate contact. 

When he punishes her he usually just bites her more and makes sure ruby is in pain. Because he loves when she's in pain she specifically gives into it and sometimes gets him angrier when she wants more and sometimes he already knows that so he teases her instead....

Every time ruby looks at kou with the sad eyes she looks at him with before he bites her makes him sad because he wonders what made her sad he wonders who hurt her....

It's not like he could control his possessiveness or him being a yandere but every time he sees ruby cry he instantly wants to kill someone or something and recently he's had a reason, ruby had no idea but Bryce her new "freind" that kou had only allowed you to have if he closely monitored what he did and he never let his guard down that is until Bryce caught him off guard by making him look the other way thankfully tho kanato was also with her and he strangled Bryce before he could carry out his true intentions with ruby... Bryce was sent to the hospital and kou made it a promise to kill him when he got out kanato even knew Bryce wanted to rape you what's worse is that you were still a virgin and you were saving that for kou and only him (yea the closest they've gotten is oral but that's about it and even then he holds himself back on purpose he knows it's not close to being time yet....) 

He loves her he can't deny that but the more he thinks about all the people at school the worse it is ... kou normally wouldn't kill any of his fangirls but if they purposely hurt her without him allowing it because sometimes that is how he punishs ruby but it's rare and it's a lot of the time that the girls get jealous of ruby because she's a neko and all of his fan girls know he loves cats and they curse that ruby was born they want her dead sometimes and they want to kill her they plan on it someday and kou can't let this happen...

 He also can't jeopardize his career as an idol so he motors what happens and to who 

He also tells the girls who fawn over him never to lay a finger on ruby or else the worst will come he even allowed kanato to make them into dolls so their body would still be as pretty as ever so if he ever wanted too he could see them fawning over him as a doll

I know it's creepy but this is how kou's mind works sometimes and seeing crystal perked him up and made him more peckish than he normally would be 

(A/N: quick note there will NOT be any sex until chapter 15 at the latest this I promise because I personally don't want to have that interaction until later anyway ...)