"Ugh…" Rias faltered under her mother's glare. The sheer pressure was terrifying—no wonder she was Rias' mother. But if Rias stayed silent, this discussion would go nowhere.
Reluctantly, Kazuki Fuwa raised his hand...
"Excuse me, may I ask a question?"
"What is it, Kazuki?"
"In the end, does this mean you refuse to acknowledge my engagement with Rias? Or will you approve if I acquire the necessary knowledge?"
"Hmm. You speak of gaining knowledge, but mastering the education and refinement required to be Rias's husband is no small feat."
"About that—I have no intention of becoming a househusband for the Gremory family. No, to be precise, I did consider it... until I came to the main estate. Now, that desire has vanished."
"What!?"
"...My, my."
"...!?"
"Kazuki!?"
His declaration sent shockwaves through the room. The atmosphere turned hostile in an instant.
"...And what, exactly, do you mean by that? Do you intend to discard my daughter after defiling her?"
Zeoticus's killing intent surged. Beside him, Rias trembled with unease. To reassure her, Kazuki took her hand in his.
"I would never do that. I have no intention of leaving Rias—nor will I let anyone take her from me. If anyone tries to steal her away, I'll fight to protect her. Even if my opponent is a God... or a Satan."
As he spoke, Kazuki unleashed his own killing intent, just for a moment, directed straight at Zeoticus.
"Guh...!"
Zeoticus stiffened under the pressure. Though he had long since stepped away from the frontlines, the fact that he didn't collapse outright proved his worth as the Gremory patriarch.
"Your resolve is admirable. As a mother, it warms my heart to see my daughter so loved. But what do you mean by not becoming her husband?"
Venelana took over the questioning, her tone eerily composed. Compared to Zeoticus's open hostility, her calm demeanor was far more terrifying.
"Allow me to explain step by step. Rias is the heir to House Gremory. To be with her, one must become her husband—correct?"
"That is correct."
"But tell me... will Rias truly remain heir? And even if she does, won't her time in that role be... cut short?"
"...What do you mean?"
"Because of Millicas. The son of a Satan, a direct male descendant of the Gremory bloodline. By the time he comes of age, won't the voices calling for him to inherit the title grow louder?"
"..."
Venelana said nothing. His guess must have hit the mark. Kazuki pressed on.
"As things stand, Rias's position will only become a hindrance. She has been formally chosen as heir, beloved by the people, and has achieved feats worthy of her station. If you bypass her to name Millicas heir instead, the Gremory family risks fracturing into factions—Rias's supporters versus Millicas's. But what if Rias were to marry into another house?"
"That's—!? Indeed, there would be no further obstacles to Millicas becoming heir..."
"...Kazuki. Are you saying...?"
"Yes. I will rise as a High-Class Devil and establish the Fuwa Clan. And then... I will take Rias as my bride."
His declaration echoed through the chamber.
"I see... You've been considering this for a while, haven't you?"
"No. I only thought of it today, after meeting Millicas. Hearing the maids and butlers speak of him made me realize: if a direct male heir exists, wouldn't it be more natural for him to inherit the title? I didn't know how you and Lord Zeoticus felt about it... But judging by your reactions, my guess wasn't far off."
As Kazuki finished, Venelana raised a hand to her lips and let out an elegant, knowing laugh.
"Fufufu~ To discern our wishes and then assert your own demands—what splendid skill, Kazuki-kun. If that's your intention, then this discussion is settled. Rias shall continue acting as heir until Millicas comes of age and proves himself worthy. And once he ascends as the next head, I promise you her hand in marriage. —Isn't that right, Rias?"
Lady Venelana declared, yet no reply came from Rias. Puzzled, Kazuki glanced beside him, only to find her flushed crimson, lost in a daze.
"What are you doing, Rias?"
"—Eep! M-Mother?!"
The murderous edge in Venelana's voice snapped Rias back to reality.
"Rias… Since when did you stop listening?!"
"B-Because! Kazuki said he'd fight even gods or devils if it meant taking me for himself…! Hearing something that cool, I just… couldn't…!"
Rias squirmed, pressing her hands to her burning cheeks. Venelana sighed deeply at her daughter's antics before launching into a lecture.
Meanwhile, Zeoticus interjected, "Very well, Kazuki. Your engagement to Rias will be formally recognized once you've risen to High-Class Devil. Until then, consider yourselves provisionally betrothed."
"Understood. I'll attain that rank as quickly as possible," Kazuki vowed, determination hardening his resolve.
—
——
That Night—
Rias slipped into Kazuki's room under the cover of darkness.
"Mmm… Chu~ …Slurpp… Kazuki…"
"Nnh— Ah, Rias…"
Pressed together at the foot of his bed, their lips melded in a deep, hungry kiss.
How many times had they done this? Yet each kiss only stoked the fire further, an insatiable craving that left her trembling.
"Kazuki… Mchu~ …Slurp~ …Nn… Gluck …Gulp …"
Their tongues danced—teasing lips, twining together, swapping saliva. Teeth grazed, tongues tangled, and every slick sound sent heat pooling between Rias' thighs.
They clung to each other, desperate to erase even a millimeter of space. Just being enveloped by Kazuki's muscular frame made her dizzy with bliss. His scent—warm, like sunlight—wrapped around her, making her core throb with need.
"Nn… Slurpp~ …Hah… Fufu~"
"What's wrong, Rias?"
"Nothing… I'm just… so happy…"
She nuzzled into the crook of his neck, whispering the words like a secret.
"I'm happy too. But we should stop here tonight. You need to go back to your room—"
Rias cut him off with a pout.
"No."
"…Rias."
"I said no. I can't sleep without you anymore. So no."
"Come on… Your parents are under the same roof. This is risky."
"It's fine. Mother approves, even if Father might grumble."
"You sure about that…?"
"Hmph! Do you not want me here, Kazuki?" When she glared, he gave a wry smile.
"It's because I do want you that this is a problem…"
Then he pinned her to the bed.
"Ahhn! Kazuki… Slurp~ …Nn… Mmm …Aah~!"
As their lips crashed together again, his fingers made quick work of her uniform buttons. The moment his palm cupped her breast over her bra, electric pleasure jolted through her, drawing a wanton writhe.
When Kazuki's hand slid toward her back, she stopped him with a breathless whisper.
"Nn, Kazuki… this one's a front hook."
"Ah, got it."
His fingers pressed the clasp between her breasts, and with a soft snap, her bra sprang open, exposing her bare, heaving flesh. Kazuki—ever a lover of ample curves—stared hungrily as her heavy tits jiggled enticingly.
That unguarded desire in his eyes made her heart flutter; she adored this side of him.
"It's okay… my breasts belong to you, Kazuki!! Do whatever you want with them."
Burying his face between her soft mounds, Kazuki seized them greedily, kneading in rough, circular motions.
"Hmmm! Nn, ahh, Kazuki…! Nn, ahh!"
Every squeeze sent waves of ticklish, toe-curling pleasure radiating through her body.
"Nnhii! Kuu… Mhannn!"
When his fingers pinched and twisted her stiffening nipples, sharp bolts of pleasure shot through her. But the moment his tongue flicked over them, teasing with light bites—
"Hyaaaaahnnn!!"
—She shattered instantly, her back arching as her climax ripped through her.
"Haah, haah… nn… Kazukii…"
Dazed but craving more, she spread her legs invitingly. Kazuki's hand slid beneath her skirt, yanking her soaked panties down in one swift motion. They hit the floor with a lewd, wet splat.
"Nn, ahh, haan…! Kuhin, fua, fuahh!"
The musky scent of her arousal filled the air, thick and unmistakable. Just the thought of Kazuki breathing it in, reveling in her lewdness, made her whole body burn with shameful heat. And when his fingers and tongue descended upon her dripping wet pussy, she was hurled back into the sea of pleasure.
"Fuaah, ahn, nn…! Kazuki, Kazukii! Right there… nn, ahh!!"
His fingers plunged into her slick entrance, curling and stroking as his mouth devoured her nectar, his tongue flicking mercilessly against her clit.
Overwhelmed, she came again with a scream.
"Aahh! I can't—Kazuki, I'm—I'm gonna… c-cuuuum!!"
Her body convulsed like a fish out of water, back bowing wildly—
Splaaaaaash!!
—before she collapsed, unconscious, as a gush of her love juice soaked the sheets.
—
——
Afterglow—
Later, Rias lay nestled against Kazuki's bare chest, both of them stripped completely. A soft laugh escaped her.
"…Fufu."
"What's funny?" Kazuki murmured, stroking her hair.
"Nothing. I just remembered earlier… Hey, Kazuki. You will make me your wife, right?"
"Of course. Would I lie?"
"…Idiot. You know how happy that makes me."
Her heart swelled, remembering how he'd declared it before her parents—conditions aside, their approval mattered.
"I love you, Kazuki. Stay with me forever."
"Yeah. I love you too, Rias."
Their lips met once more as they drifted to sleep, tangled in each other's arms.
The next morning's chaos—when the maids discovered them entwined and naked—was a story for another time.
~~~~~~~~~~~~~~~~~~~~~~~~
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