The despicable NTR work known as Kokujin no Tenkousei does not belong to me (if it did, Hiroki would have sweet revenge or simply lead a happy life), it belongs to Terasu MC.

xxxxx

Warm sunlight began to invade the room through the open gaps in the window. Small gusts of air came into contact with my tired, sweaty body, which made me shiver slightly. My eyes, that until now had been monotonously staring at the bedroom ceiling, moved to the side when I heard a loud sound, landing on the figure of a muscular black man who was sleeping soundly, his snores annoyingly penetrating my ears. The sheet covered our bodies only halfway, but that didn't bother me. It had been a short while since we finished our daily session of wild sex.

Thinking back to the hot night we'd had, I couldn't help but smile with contentment. As always, Kokujin was indomitable, fucking all of us hard and insatiably, always wanting more of our bodies like a hungry beast devouring its prey.

From the facial expressions on Kaede's, Kanoko's and Ayumu's faces, they shared this same feeling of satisfaction as they left my room, limping as they got dressed and went to their respective homes. Seeing them like this gave me a curious sense of pride, after all, I was the one who introduced this wonderful specimen of a man into their lives. Just like me, after having the delight of experiencing pleasure that only a real man could give to a woman, it was impossible not to become addicted to the adonis in my bed.

Noticing how moist the bed was with bodily and genital fluids, I grimaced slightly and got up lazily, heading for the bathroom as I felt Kokujin's warm cum drip down my crotch. Opening the shower and letting the hot water fall, I let out a long sigh, an expression of joy taking over my face.

Could my life be any better than it is now? My routines involved animalistic sex for hours with a real man and sometimes taking part in orgies with the others, which allowed me to satisfy some of my sexual curiosity regarding girl on girl action. Cheating on Hiroki with Kokujin was probably the best decision I ever made. Not only does that useless boy not measure up to my new lover, but it would have been impossible to have sex with his mother, sister and friend if I'd stayed with the idiot.

Ah~, the sad expression on his face and the clear sense of betrayal and indignation in those crystal blue eyes as he was tied up and forced to watch as all the important women in his life abandoned him for a man they barely knew was incredible. Even though a few days had passed, that image wouldn't leave my head for not even a single second.

I could feel a rather familiar warmth take over my lower parts, a more than clear indication of my state of arousal.

"Haaah, I'm getting so wet~"

My hand began to snake through my abdomen and slide downwards, reaching my labia, which were honeyed not only with cum, but also with vaginal juice. It wasn't long before I started masturbating frantically.

"How do you feel, Hiroki? Being so close to us but at the same time being so far away? Are you broken inside? Are you excited to see how your old family, friend and girlfriend are fucked by a superior man? Haaaaah! Yes! Let those tears fall! I love the contrast between the sorrow on your face and your body's natural response at the sight of a woman having sex right in front of you!"

I moaned uncontrollably, increasing the pace at which my hand moved. Flashes of his every little reaction were an stimulus that kept making me reach the edge. It was simply wonderful how that stupid boy could feed and satisfy the sadism inside me. The memory of how I could see pre-cum oozing out of the tip of his cock through the fabric of his pants, which made him look away in shame was the cherry on top, he looked so cute.

"I'm cumming!" - I howled as I threw my head back.

Powerful jets of vaginal fluid squirted out of my pussy and against the wall in front of me, mixing with the pool of water at my feet. I was in cloud nine, stretching my body as much as possible to try and make the climax last even longer. As soon as the wave of pleasure subsided, I continued my shower.

Honestly, that was probably one of the strongest and most satisfying orgasms I've had in my life. Maybe it's time to bring Hiroki back to watch another sex session, but not for an orgy, no, this time it will be just me and Kokujin as the main attraction for our one-man audience. He's probably locked up in his room after the psychological blow he's suffered. I'll ask Kaede and Kanoko to put a sleeping pill in his food, I bet the surprise and terror on his face not only when he wakes up and sees us going at it like rabbits, but also when he realizes the chastity cage attached to him will be priceless.

A juicy shiver ran through my body as I mentally pictured that scene in my head while drying off and preparing myself for a new school day.

I'm going to talk to Kanoko after school to ask her for this little favor.

Walking over to Kokujin, I woke him up and, after he'd washed and got ready, we went to school together, him hugging me with one arm throughout the entire walk while giving my round ass a good squeeze every now and then.

xxxxxx

"Can you please repeat what you said one more time?" - I asked incredulously.

Kanoko put one hand in her waist as she looked at me curiously, but then shrugged her shoulders in indifference.

"As I said, my useless brother is not at home."

"Where could he be then?"

"Beats me. When we went to call him in for dinner yesterday, we found the room partially empty. There were several items and clothes missing from his closet too."

"So you're basically saying that he run away?"

"Yes. Wonderful, isn't it? Without that worm in the house, we can enjoy Kokujin's big cock to our heart's content." - Kanoko said happily, her tongue circling her lips lustfully.

I couldn't even muster the will to answer her, my mind had a million things running through it. Firstly, my plan for the sensual evening that was supposed to take place was completely destroyed. As for my other thoughts, they were all directed to that blond little shit.

That bastard had the gall to run away? Who does he think he is to think he can get away from me? Has he not yet realized that the place he belongs is right next to me as my personal plaything?

Unadulterated anger and an emotion that I couldn't pinpoint what it was traveled through every pore in my body. I even had a slight urge to strangle Kanoko and Kaede for not keeping an eye on Hiroki and stopping him, but I gradually began to control myself, putting my feelings aside and thinking about the situation rationally.

Stay calm Nao, it's not as if Hiroki can provide food and housing for himself. Not to mention that he's still a minor, which means he can't work. The most he could get as a high school student would be a part-time job, and those don't even pay well. He's just acting impulsively.

Yes! That's exactly it!

It's just impulsivity on his part. Due to all the physical and emotional pain we've inflicted on him, Hiroki has decided to act like a kid in his rebellious phase. He may have run away but it's only temporary! I bet he'll be back in a few days or weeks at most.

Kukuku, and when that happens, I'll block any escape routes. I have to make sure to break him completely this time. I'm going to strip him away of his human rights and make him understand his new role as my exclusive dog. I'm going to train him to live for me and worship only me. There will be nothing left in his mind but me and his only desire in life will be to fullfil my every whim.

His innocence in thinking he can escape is adorable. Ah Hiroki, you never change huh~

Abruptly saying goodbye to Kanoko, I returned to my house without waiting for Kokujin. He's probably going to fuck Ayumu or Kaede anyway since it's their turn this week. They've been irritating me lately with their complaints about not having as much sex with Kokujin as me, so that kills two birds in one shot. While he's busy with them, I'm going to research methods of shattering someone's mind. Nothing could be fairer than molding what is rightfully mine in any way I want.

Just wait for it...Hiroki.

xxxxxx

Author's Note: Woah, it's been a while since I've posted anything here, almost 3 years? Damn, time goes by too fast. Since Kokujin No Tenkousei became kind of a trend with a lot of people making fanarts and fanfictions about Hiroki, I decided to try my hand at it too. I thought it would be interesting to write something from Nao's point of view and give her some slight (for now) yandere traits. To be honest, even her canon self gave me some yandere vibes, but even more distorted.

Just saying that this will be a short story, probably won't have more than 2 or 3 chapters.

I don't know when I'll be able to write and post the next chapter, I'm pretty busy with a lot of work related stuff and travels, but my goal is to complete this fanfic by the end of next week.

If anyone wants to write something similar, be my guest. I would love to read it.