Chapter 41 Let’s Wreck the Seiryuusai Festival with Evil Dragon! ②
Edited by: Kanaa-senpai
Being welcomed back by the entire Shiryuin Clan as the so-called national guardian who sealed away the world-ending Evil Dragon… yeah, it was a sight. Even after I passed through the gates of the main estate, the roar of the crowd didn’t die down; thousands of blood relatives, all swept up in a frenzy that rumbled through the air like a living thunder.
To them, the one who risked his life to keep the Evil Dragon sealed wasn’t just family—he was the shining symbol of the clan’s supremacy, a living proof that their bloodline stood above the rest of the world.
Their pride as members of the legendary Shiryuin Clan, the family said to uphold the very balance of the world, gave them a sense of identity so strong you could almost see it glowing in their eyes. Honestly, it was like how people feel proud of a celebrity just because they’re from the same country—only this was cranked up about a hundred times higher.
It felt like showing up to a concert venue even without a ticket, just to breathe the same air as your idol.
Most of these people were distant branches, nowhere near the main family, yet even just sharing the blood of the clan that sealed the Evil Dragon was enough to make them feel special. They didn’t have the right to join the actual Seal Dragon Festival, but still, they’d come running from all across Japan just to be near it. That alone showed how terrifyingly powerful the Shiryuin Clan’s charisma was.
”Let the gathered relatives write their names down somewhere,” Seiichi murmured to one of the attendants. “If nothing else, I want their names to be present when the ritual begins.”
”Understood. I’ll arrange it immediately.”
Normally they would’ve just been dismissed after paying their respects, but since this was going to be the very last Seal Dragon Festival, we decided to let them leave their names behind, at least as witnesses to its end. If they carried our blood, they deserved to stand at the edge of this closing chapter.
Just then, the sound of the front doors sliding open drew my head up on reflex.
”You’ve worked hard, Inji,” came a calm voice. “Thank you for keeping the clan steady while the head was away.”
”And thank you, Mikoto-nee, for guiding the main house in my absence,” I replied.
Mikoto Shiryuin, eldest daughter of the main family, stood in the doorway. Draped in a flowing purple kimono, her posture was the picture of grace, the very image of a demure shrine maiden, her long black hair bound up and trailing like a silken ribbon down her back. She looked like a portrait of a perfect Yamato nadeshiko [T/N: traditional ideal of a modest, devoted Japanese woman].
But beneath that image… she was a zealot. A radical pure-blood supremacist who had invented a forbidden technique called the Bloodline Purification Rite [T/N: a magical ritual that removes genetic defects from incestuous unions] just so she and her siblings could indulge in forbidden breeding, all to refine the Shiryuin blood to its sharpest edge.
Her figure had grown rounder and more voluptuous after bearing children with our younger brothers, and the way her tongue swept over her lips as she gazed at me was like a predator eyeing the finest stallion on earth.
”After all those long, cold nights down in the Underground Temple, you must be craving warmth, aren’t you?” Her voice dipped like honey. “The younger sisters have prepared the Bedchamber Service and… emptied their wombs just for you.”
”I came up only for the Seal Dragon Festival,” I said flatly. “I don’t have the luxury of wasting time on such things.”
”You’re so cold… The seed of such a fine Inji should be kept pure—protected within the family, away from all taint.”
Mikoto wanted to monopolize my seed. She planned to secure the clan’s glory by producing more of me—by having the clan’s ultimate masterpiece, the current head, breed only with his sisters. If she erased the taboo, she could thicken our blood until we no longer needed outsiders at all.
”The sisters were so eager to welcome their beloved head home…” she breathed.
”They’ll be disappointed. I have no intention of touching them.”
Not when I already had Yaten as my Mate. And if anyone ever even hinted that another woman had tried to tempt me… Yaten would hit her Reverse Scale [T/N: a dragon’s untouchable weak spot, enraging them if touched] and kill her without hesitation.
Honestly, I didn’t even care if siblings had tangled relationships of their own. If the Bloodline Purification Rite really erased all the problems that came with inbreeding, then they could roll around however they liked.
But trying to seduce me, who already had a Mate—and worse, unknowingly trying to NTR the world-ending Evil Dragon herself? That would only end with my sisters dying. And I didn’t want that.
So I had to stop Mikoto before she danced into that minefield.
”Never tempt me again,” I said, my tone like iron. “That’s an order from your clan head. Disobey, and I’ll cast you out.”
”That’s unfair,” she whispered, trembling. “If you order it… then I have no choice but to obey…”
Mikoto prized the clan’s rules above everything. She could never defy an order from the main house’s head—because obeying was tied to her very identity. So even as sorrow clouded her face, she bowed her head, hands clenched so tightly her knuckles bled. To her, I was the supreme stallion, the one piece she absolutely needed to ensure the clan’s rise… and being denied that chance must’ve been unbearable.
”Enough talk. Seiichi, let’s go.”
At the doorway, the other siblings who had silently watched our standoff now stood frozen, heads bowed in frustration. The brothers stared at me with disbelief, like they couldn’t understand why I’d reject the role of stud horse. The sisters, pressing their palms to their wombs as if to soothe the children they wouldn’t get, could only watch me pass.
And beyond them, four hundred more were waiting to greet me inside the sprawling estate.
”…There are a lot of pregnant women here,” I muttered. “Don’t tell me… all of them, from the Bloodline Purification Rite?”
”Those are the ones who were swayed by Lady Mikoto’s ideals,” Seiichi said stiffly. “They’ve been… busy strengthening the bloodline.”
”I see… Well, the Rite might erase the usual problems, but… the clan’s discipline is clearly falling apart.”
”We revere the blood above all else. There’s no way to stop them…”
The halls overflowed with women swollen with children conceived through incest. Even those whose bellies hadn’t yet rounded radiated the faint glow of new life. Nearly half the women I passed were pregnant—the Shiryuin Clan was in the middle of a full-blown baby boom.
It was terrifying how seductive the Bloodline Purification Rite was to those obsessed with bloodlines. The clan that sealed the Evil Dragon, those who carried that charisma in their veins, saw their blood as their pride, their very identity. Of course they wanted to thicken it to keep their supremacy alive. And so what should have been a universal taboo was now blooming wildly through the halls, the children of this twisted tradition sprouting up one after another.
Even Seiichi, head of a branch family, seemed torn. But once someone invoked the “duty to preserve the bloodline,” nothing could stop this clan.
”…That Bloodline Purification Rite,” he muttered. “What a technique to create, sister.”
”It is undeniably effective,” Mikoto replied quietly. “Only the head could ever stop it… and that means you.”
The discipline of the clan was crumbling, but its glory was rising—and that was undeniable. The Shiryuin Clan’s Potential, honed through generations of selective breeding for every spiritual gift imaginable, already towered above every other family in the world. The thicker the blood, the greater the child born of it. And now that the Rite had erased all the concerns, as Seiichi said… as the head, I couldn’t stop this baby boom. Not if I put the clan’s prosperity first.
The clan, steeped in its ancient taboos, had bitten into the forbidden fruit—and fallen deeper than ever. Even Seiichi, usually composed, seemed quietly troubled.
(When my daughters walk this surface world… I swear I’ll crush the Shiryuin Clan’s corruption to dust.)
An entire clan drowning in its own depravity, a sight no child should ever witness. And as I walked through it, the chaos only sharpened my resolve, stoking my will to end these accursed traditions and tear the Shiryuin Clan down with my own hands.
💥 METADATA EXPLOSION 💥
Genre & Setting: Dark modern fantasy meets ancient clan politics. Big ancestral Japanese estate setting, full of ceremonial tension and creepy elegance. This is the climax of a long clan-arc, with cultish overtones and twisted tradition clashing with the MC’s rebellion.
Relationships:
Inji (MC): Current clan head, outwardly calm and authoritative, secretly rebellious. Mate-bonded with Yaten (the sealed Evil Dragon in human form).
Mikoto: Eldest sister, beautiful, elegant, secretly obsessive and unhinged pure-blood supremacist. Wants to monopolize Inji’s “seed” to strengthen the clan.
Seiichi: Branch family head, loyal but quietly disturbed by the clan’s decline. Cautious, more grounded.
Cultural/Otaku Terms:
Seal Dragon Festival (ふうりゅうさい): sacred ritual to maintain the magical seal on the Evil Dragon.
Bloodline Purification Rite (きんたいじゅつ): taboo-breaking ritual to erase genetic defects from inbreeding.
Mate / Reverse Scale / NTR / Yamato nadeshiko — all left intact with [T/N] inline clarifications.
Character Voices:
Inji: cold, commanding, clipped, yet occasionally dryly sarcastic. Rarely shows warmth except when thinking of Yaten.
Mikoto: syrupy, formal, seductive tone; almost sings her lines, but shifts sharp when denied.
Seiichi: measured, low tone, formal but with tired sighs. Pragmatic.
Extra Highlights:
The estate is full of pregnant women = visual shock factor.
”Minefield” metaphor about Mikoto almost triggering Yaten = foreshadowing future bloodbath.
Inji’s internal vow to destroy the clan once his daughters are born = epic future hook.
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Edited by Kanaa-senpai.
Thanks for reading.
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