When the light from the ceiling poured down, it caught on the long silver hair cascading straight down her back, making it gleam.
The woman wearing that beautiful hair shifted faintly in place, her body wrapped in the Kuoh Academy high school uniform.
Naked, sitting on the edge of my own bed, I leisurely admired her.
From the oddly short wine-red skirt, her pale, plump thighs spilled out.
Her breasts were pushed up and emphasized all the more by the too-small white blouse.
However, the black blazer with an open chest design that she wore over it seemed to be roughly the right size in the shoulders and waist, without the same tightness.
In short, compared to the uniform's original owner, she was taller, with bigger tits and a bigger ass.
And yet, the blazer didn't strain much around her waist — if the original girl saw this, she'd probably grind her teeth in frustration.
"It suits you, Grayfia."
I simply said what I was thinking, but she only stood there in silence near the door.
She swallowed her shame, fixing me with a resentful, blaming glare for having forced her into that uniform. She didn't seem to realize that attitude itself only made her even more alluring.
"What's wrong? Come here."
Prodded by my words, Grayfia finally moved her feet.
The uniform, completely different from her usual maid outfit or normal clothes, clearly felt strange to her. The exposed, enticing legs seemed to bother her, and even her steps were slightly awkward.
Moving slowly, she stopped in front of me.
When I patted the bed beside me, she obeyed and sat down — but left a strange amount of distance between us.
Noticing that, I closed the gap immediately.
Then, as always, I slipped an arm around her shoulders and pulled her close.
"Face me."
"…nh…"
The moment she turned toward me like I told her, I stole her lips.
Unable to hold back the thrill, I pressed my mouth to hers with force, slipping my tongue inside right away. Watching her silver eyes tremble, I smirked as I poured my saliva in and stirred her mouth with my tongue. When she tried to retreat, I traced her tongue with mine, savoring the sensation of them rubbing together.
"Nn… haah…"
The sultry sound leaking from Grayfia's lips made my crotch swell as I devoured the kiss.
Once I'd had enough, I pulled my mouth away.
"Your breathing is more ragged than usual, isn't it?"
"…It's just your imagination."
Looking down, Grayfia was clearly not her usual self.
No doubt it was the clothes. Doing obscene things while wearing a uniform meant for an eighteen-year-old schoolgirl — and on top of that, the uniform of the academy her sister-in-law Rias attended — it would be impossible for her not to have complicated feelings about it, whether she admitted them or not. Those emotions were bleeding through.
"…ngh…"
I slid my hand down from her shoulder and grabbed her ass over the uniform skirt.
Slowly, persistently, like a lust-crazed middle-aged man groping a schoolgirl on a train, or paying a teen in an alleyway.
Grayfia couldn't bring herself to scold me; she just endured it in silence.
While she did, I brought my lips to her ear and spoke gently.
"Then let's stay connected while you give me today's report."
"…Yes…"
Grayfia took a breath and stood up, getting to work.
She straddled me as I lay back on the bed, and with practiced ease guided my cock into herself.
The uniform stayed on. She simply shifted her underwear aside and swallowed my shaft to the base with her cunt. Then, in a mounted position, she began to move her hips up and down.
"So, how did your little discussion turn out?"
As her tight, soft pussy stroked me, I threw the question at her.
Maintaining her usual detached tone as best she could, Grayfia answered.
"It has been decided that your engagement will be settled by a Rating Game."
Exactly what I'd expected.
In the Underworld, there's a form of entertainment called the Rating Game.
Two sides fight on a special battlefield generated in a pocket dimension, and whichever side fulfills the victory conditions first wins. The only ones allowed to participate are the King and their servants. From my side, Riser Phenex's, that meant fifteen servants plus their King — me.
"The rules?"
Even under the umbrella of Rating Games, there are many rule sets. Some are pure combat. Others are special rules, like stealing a flag placed in the field. Being strong doesn't automatically mean victory.
"Normal rules."
The normal rules.
Meaning everyone capable of fighting is deployed at once, and the game ends when one side defeats or forces the surrender of the opposing King. Strategy matters, but individual fighting power heavily sways the outcome.
"When's the match?"
When I reached up my hands, Grayfia reluctantly took them.
We laced our fingers together like lovers, and as she bounced on my lap, milking my cock with her entire cunt, she answered.
"In ten days."
I thought: that's long.
But at the same time, maybe that was the minimum they needed.
Normally, only adult devils can participate in a Rating Game. Riser, already an adult, had experience — and aside from a few deliberate "service losses," he'd never been defeated.
The reason was simple: the Phenex's immortality.
In a game where even death was a temporary inconvenience, the Phenex was monstrously strong. To beat one, you either needed to annihilate them in a single, brutal strike, or wear them down by killing them over and over until their mind broke.
For someone up against me, ten days of prep might actually be short.
"If I win, the engagement stands. If Rias wins, it's canceled. That's the setup?"
"Yes."
Grayfia twisted her skirt as she repeatedly sat down hard on my lap.
Her voice had picked up the faintest quiver. If she relaxed for a second, it would probably crack. So she clamped her lips tightly whenever she wasn't speaking.
"So what exactly am I supposed to do?"
"I ask that you lose the game, Riser-sama."
Well, of course.
Even if she'd just sold herself for a temporary reprieve to protect Rias, if I married Rias anyway, it would all be pointless. She couldn't very well demand I never touch my own wife and force me to ignore her. She'd just have to watch me love Rias as my bride.
So far, everything was going according to plan. I could see how the rest of the story would unfold, more or less.
"I don't mind losing. What do I get in return?"
I thrust up slightly, lifting both her and her womb along with my cock.
"An additional week… I will love you as a woman, Riser-sama."
Suppressing her agitation as much as possible, Grayfia kept moving her hips. Meanwhile, I ground the tip of my cock against her cervix, pressing it insistently.
"That again?"
"It is all I have to offer. I can only give you my body."
"Still no on giving me your entire life, huh?"
"Yes. I have a family."
That line, at least, she wasn't willing to bend on.
Family, huh.
I'd never really had a proper one as a human, so I didn't get it. I'd never known parental love. Morning, noon, night — my parents were hardly ever home. Instead of loving their kid, they poured all their affection on their respective lovers.
"Well, whatever. Let's say we settle for a week. That's me being generous. You should be grateful."
"Thank you."
Now I had two weeks total banked. I'd have to think carefully about when to cash them in. I might rack up more later, but I couldn't just waste what I had on a whim.
"So, what are Rias and the others planning to do until the game?"
I understood they'd be training for our match, but not the exact details.
Since becoming Riser, I'd stopped participating in Rating Games altogether, making excuses and, when needed, using brainwashing to avoid them. They just seemed like a hassle. Which meant I had zero firsthand experience.
By contrast, digging through Riser's old memories, I saw that his "pre-game routine" had consisted of whispering sweet nothings to his servants, having sex with them all in bed, and promising that whoever shone in the match would be rewarded by getting fucked all day afterward.
"They said they would be 'training.'"
Training? Starting only ten days before?
Riser had never trained properly in his life. He'd always just bulldozed his way through games with Phenex power.
"Where?"
Maybe they'd chosen some special environment.
"…What are you planning to do with that information?"
I'd only asked out of simple curiosity, but Grayfia's voice had turned cold.
Even as her hips moved in perfect rhythm, her gaze held a faintly reproachful tint.
That annoyed me.
"Hey."
My short word carried enough edge to make her flinch.
"I'm the one asking questions here. Just answer."
When I spoke slowly, clearly, she finally moved her lips.
"At a Gremory family villa. They will be training in the mountains."
Training in the mountains.
Like something out of a shounen manga. It definitely didn't suit me.
Effort, friendship, victory? Disgusting.
Money, violence, sex — that was more my speed.
"Training, huh. Maybe I'll go watch."
I wanted to see with my own eyes how desperately Rias and her servants would work — totally unaware that she and I had already made our own little backroom deal.
"…I will not stop you. But I believed you promised not to lay hands on them."
"How many times do I have to repeat myself? I keep my promises. I said I wouldn't touch Rias or the others, didn't I?"
I let my hips settle, then squeezed her hands again.
"But I will touch you. I want to fuck you right in front of the girls you're so desperate to protect."
Grayfia's eyes shook.
She must have imagined herself being violated in front of Rias and the others — her pussy tightened around me in response. Her inner walls clung even more, and the heightened pressure sent a delicious jolt up my spine.
My cock swelled, preparing to cum.
Sensing it, Grayfia closed her eyes and let out a small sigh. The expression on her face was pure resignation. Seeing that she'd braced herself to accept me, I shuddered with pleasure.
Splurt—! Splurrrt—!
I ejaculated inside the uniform-clad Grayfia, who sat on my lap.
Most of it flooded straight into her womb, clinging to the walls in a sticky, stubborn coat. As my body relaxed in satisfaction, I let my mind dwell on the image of her uterus being sullied.
"You really shouldn't try my patience too much, you know."
Hearing my sudden words, Grayfia opened her eyes.
Beneath the mask, I could clearly see the anxiety.
Still pumping semen tightly into her womb, I met her gaze.
"I'll keep my word. But if you push me too far, you know what'll happen to the people you care about — Rias included. I'll give the men a brutal death, and I'll let the women stay sane while they spend eternity bearing my children. Imagine Sirzechs and Milicas getting slaughtered slowly. Imagine Rias sobbing while she pushes my kids out of her cunt. Want to see it?"
Cold sweat broke across Grayfia's forehead.
She knew I wasn't joking. She knew I would do it.
"I will have you, no matter what I have to sacrifice. You'll stay by my side forever as my wife. You'll love me, and you'll love every child you bear with me. I won't let you go. Understand?"
"…Yes."
The pause before her answer bothered me.
But when I muttered, "Maybe I should have you be the one to kill Milicas," she suddenly rode me with wild, pile-driving thrusts, as if to appease me.
That short uniform bounced wildly as she worked my cock with everything she had.
She looked so enticing that I pumped my genes into her womb over and over again.