Crossover-Isekai 443

Chapter 443 Seris Redoheart*


Edited by: Kanaa-senpai


 It was past two in the afternoon. Aki and Ravel’s dual cultivation was at a critical moment—and a foreign girl had come to call at the mansion.


 The task of receiving her fell to Marion and Brünte. After Aki had healed them, the two had simply stayed on at the Grand Western-style Mansion, returning to their former duties.


 As they took in the beautiful girl before them, the two Devil Maids blinked in surprise. Then, as recognition dawned, they said: “Miss Redoheart, you’ve arrived. We’ll call Miss Yuki and Miss Kurumi at once.”


 Nonaka Yuki and Nonaka Kurumi were members of Aki’s Peerage, theoretically peers of Ravel—so addressing them as “Miss” wasn’t entirely inappropriate.


 Moreover, since they’d decided to fulfill their duties as maids, every girl connected to Aki in this household deserved the same respectful address.


 Of course, since they themselves were also Aki’s women, no one would have said anything if they’d dispensed with the formalities. But the soul of a maid wouldn’t allow such casualness. On the contrary, calling the other girls “Miss” and “Master” brought them a certain peace of mind.


 The visitor was none other than Seris Redoheart—a girl who had, through unfortunate timing, missed Aki entirely. She was an elite Hero, personally selected by the Hero Clan.


 On her first visit, Seris hadn’t been able to see Aki—nor even Rias, the female master of the house. After exchanging pleasantries with the Nonaka sisters, for whom she shared a passing acquaintance as fellow Heroes, she’d chosen to leave.


 The Nonaka sisters hadn’t known how long Aki would be gone, so they’d given a conservative estimate: a week.


 As it turned out, he’d returned the very next day.


 Well, not because things had wrapped up quickly—Aki had simply handled the fighting and left everything else to Rias and Himejima Akeno.


 Seris, being new to the area, had left no contact information, and with the arrival of Liala and Sephie, the household had simply forgotten about her.


 If she hadn’t shown up again a week later, it seemed no one would have remembered.


 The beautiful girl with her golden hair tied into a side-ponytail, her features composed and elegant, nodded lightly and followed Marion and Brünte to the drawing room.


 As she waited, Seris’s clear emerald eyes glinted with a firm resolve.


 Her earlier departure hadn’t been just because she couldn’t see the person in charge—she’d also needed to handle practical matters as a newcomer: getting a new phone card, arranging her school transfer, securing identification documents.


 That week, she’d taken care of it all. Even if she couldn’t see Aki or Rias this time, she absolutely would not leave.


 After all, her mission was close observation—she was supposed to be living here anyway.


 The Hero Clan had sent Seris to continue the mission partly because they trusted her strength and loyalty, and partly because they valued her straightforward, stubborn personality.


 Until she could confirm for herself that the Naruse sisters and the Divine Research Society posed no threat, Seris would not back down—no matter what happened or what obstacles she faced.


 Just as the elite Hero girl from the Vatican steeled her resolve, Nonaka Yuki and Nonaka Kurumi arrived together.


 ”Senior Redoheart.”


 ”Senior Redoheart, good afternoon.”


 As former Heroes themselves, the Nonaka sisters found “Senior” to be the most fitting address for Seris—she was stronger than them, held a higher rank, and was slightly older.


 Seris accepted the title with perfect naturalness, asking without the slightest hesitation: “Nonaka. Has the Red Dragon Emperor returned?”


 ”He’s been back for a while…”


 Nonaka Yuki hesitated, then said with obvious sincerity: “Senior Redoheart, I’d advise you to give up on this mission.”


 ”Why?”


 ”Aki-nii has reached God-tier,” Nonaka Kurumi said. “The Hero Clan should have received the news by now, though it might take a little longer to reach you. Given our current strength, Hero Clan wouldn’t even notice if we openly turned against them or simply deceived them. Your surveillance mission is completely meaningless.”


 Seris was stubborn, but not stupid. She could tell Nonaka Yuki was speaking out of genuine concern. Still, until she received explicit orders, she would not abandon this mission.


 She silently mouthed the words “God-tier” to herself, then replied slowly: “Thank you. But I would still like to speak with the Red Dragon Emperor face-to-face.”


 The Nonaka sisters exchanged a glance and decided not to press further.


 They knew this Senior’s personality well enough. It looked like they were destined to gain one more sister.


 Their advice had been sincere—but also, on another level, they hoped to have fewer women sharing Aki.


 They’d said their piece. Seris hadn’t listened. From there, whatever happened next was on her.


 ”Senior, Aki-nii is busy right now. If you want to see him, it’ll have to be tomorrow morning.”


 ”The Red Dragon Emperor is home, isn’t he? He doesn’t even have time to come out for a brief meeting?” Seris asked, puzzled.


 Earlier, when Marion and Brünte had said they’d call the Nonaka sisters, she’d found it strange. She’d assumed she wouldn’t meet anyone again and had resolved to simply stay and wait. Now, hearing from the Nonaka sisters themselves that Aki was inside—that threw her.


 She could understand the Nonaka sisters wanting to talk her out of it, that made sense. But delaying a meeting until tomorrow morning? That she didn’t understand.


 She’d waited a week—half a day wasn’t the issue. Seris’s stubborn nature simply demanded an answer.


 Nonaka Kurumi shrugged helplessly: “Aki-nii’s in the middle of dual cultivation with Ravel.”


 ”And Xue and Isabella too,” Nonaka Yuki added. “Aki won’t be crawling out of that room until morning.”


 ”Dual cultivation? Ravel? Xue? Isabella?”


 Seris’s face was a mask of utter confusion. She understood what “dual cultivation” meant—she’d done her research on Aki before coming. The names Ravel, Xue, and Isabella didn’t ring any bells, but she could guess they were three girls.


 But those four terms together? That simply wouldn’t compute.


 Dual cultivation was supposed to be two people, wasn’t it?


 Yet this was clearly more than that. Add Aki to the mix, and that made four.


 ”Well… it’s complicated. If you don’t believe me, you can see for yourself.”


 Nonaka Kurumi flicked her purple ponytail back behind her shoulder. With someone as stubborn as Seris, she wasn’t about to waste her breath. Better to let the girl see with her own eyes.


 In her experience, Ravel and the other two had likely already passed their commemorative “first time.” A brief interruption shouldn’t be too disruptive.


 Ideally, of course, they wouldn’t disturb Aki and the girls during their first time. But Seris clearly wasn’t going to drop this easily.


 After a brief silence, Seris’s eyes hardened with resolve. “Take me there.”


 A few moments later, with the Nonaka sisters leading the way, the three young women arrived at Ravel’s door on the second floor.


 Even the heavy oak door couldn’t fully muffle the sounds within—the creaking of the bed and the melodic, charming cries of a girl drifted out through the gap.


 The Nonaka sisters, seasoned veterans by now, knew immediately what was happening inside. Their cute, delicate faces flushed crimson, and their long, fair legs unconsciously pressed together.


 Seris had no such experience, but since she’d been told Aki was dual-cultivating, she naturally guessed what was going on. Still, lacking the same life experience, she had trouble picturing it. Apart from a slight awkwardness, she seemed far less flustered than the Nonaka sisters.


 ”The Red Dragon Emperor is in there?”


 ”Yes. If you want to see for yourself, you can knock.”


 Nonaka Kurumi, fighting the heat beginning to rise within her, hurriedly finished her sentence and turned to leave. She was afraid that if she stayed any longer, the moment the door opened, she wouldn’t be able to stop herself from forcing her way in.


 Nonaka Yuki, somewhat more composed, added: “Aki will probably let you in. I just hope you’re not too shocked when you see it.”


 On the other side of the door, with no magical barrier in place, Aki could already tell what was happening outside. He didn’t feel the need to use his Sacred Gear’s penetrating vision for something as trivial as this, so he had no way of knowing it was Seris, the Hero schoolgirl from the Vatican, waiting out there.


 As the Nonaka sisters and Seris conversed in the hallway, Aki’s pace inside began to quicken.


 ”Ah—!”


 Under the rapid tempo of Little Aki’s thrusts, Ravel finally shattered. The pure, pristine essence she’d preserved for over a decade erupted from her all at once, and Aki absorbed every drop.


 The waves of pleasure surging through Little Aki told him Ravel had reached her peak. He thrust a dozen more times, then let out a low growl, flooding Ravel’s most sacred depths with life force amplified by the dual cultivation ability.


 When it was done, Aki’s body pressed against Ravel’s soft, snow-white form. He smiled down at the girl lying there, her beautiful eyes closed, her breath coming in ragged gasps.


 That alluring, radiant face only made him more excited, more satisfied.


 As the afterglow of her climax slowly faded, Ravel opened her eyes. When she saw Aki gazing at her with such unguarded adoration, a flush of shame spread across her cheeks—she was both overjoyed and embarrassed. She reached up with her soft, pale hands and cupped that unforgettable face, gazing back at him with tender affection.


 Little streams of milky white liquid escaped from Ravel’s garden, carried out along the edges of her folds by Little Aki

12


 —


 Summary:

 Seris arrives at the mansion seeking Aki, only to learn he’s home but engaged in dual cultivation with Ravel, Xue, and Isabella simultaneously. The Nonaka sisters warn her to abandon her mission, but her stubborn nature drives her to the door. As Aki completes his session, Seris knocks and announces herself, leading to Aki casually asking his current partners if they’d mind an additional participant.


 —


 Trivia:

 1. Nonaka Yuki and Nonaka Kurumi are former Hero Clan members now in Aki’s Peerage.

 2. The phrase “creampie” in the source was intentionally left as an English loanword by the author for comedic shock value.

 3. Seris is from the Vatican and was personally selected by the Hero Clan for her strength and stubborn personality.

 4. The dual cultivation ability amplifies life force energy during the act.

 5. Ravel preserved her virgin essence for over a decade before this encounter.

 6. Aki reached God-tier status after recent events.

 7. The Divine Research Society is mentioned as a potential threat Seris is investigating.

 8. Nonaka Kurumi flees the scene because she fears losing control if she stays near the door.

 9. The story is set in a Grand Western-style Mansion with Devil Maids serving the household.

 10. Liala and Sephie arrived recently, contributing to the household forgetting about Seris.


 —


 Translation Notes:

1 Literal meaning “tear the face skin.” Translated as “openly turned against them” to convey the sense of severing a relationship beyond repair or openly defying someone. Equivalent to “burning bridges” in English.

2 An archaic, extremely formal self-reference in Japanese/Chinese meaning “this humble one.” Translated through tone and formal phrasing rather than literal rendering to maintain natural English while preserving the respectful register.


Notes:


• Ravel – A blonde, twin-tailed Phoenix princess and pure-blooded Devil, this sharp-tongued, lolita-clad heiress with flaming wings is the Queen of Aki’s peerage. Nearing her Breaching, this untouched girl was absent during the inner circle scene. Devoted to Aki and Rias, she facilitates Dual Cultivation for their recovery and remains a protective, fiercely loyal ally to new members.

• Aki – A tall, handsome Kuoh Academy student and Red Dragon Emperor, he is a reincarnated cultivator who currently inhabits a pitch-black cat form with piercing azure eyes. Calculating and protective, he commands the Boosted Gear and Origin Blood. Connected to the Gremory household and Naruse Mio via a Soul Network, he manages a vast harem while navigating ancient conspiracies and his own feline instincts.

• Brünte – A lively, curvaceous maid in Aki’s household with wine-red shoulder-length hair and sky-blue eyes. Transformed from a twin loli into a woman, she possesses a highly sensitive body and wanton tendencies. Having briefly received Aki’s attention, she is eager to engage with him and became a target for his cultivation after witnessing the intimacy of others.

• Marion – A gentle, serene Pawn-class combatant maid in Aki’s household and student with chestnut hair, fair skin, and a fuller figure. One of the twin lolis treated by Aki, she briefly received his attention and is now deeply devoted to him following Dual Cultivation. Once Brent’s acquaintance, she is initially shy and virginal yet possesses a graceful aura prone to intense emotional surrender.

• Kurumi – Nonaka Kurumi is Yuki’s younger sister, a petite, doll-like former Hero and Bishop-class member with a purple ponytail, weak constitution, and great magical aptitude. A shy, spirited tsundere, she shares a deep bond with Yuki and a close, envious relationship with Mio. She is driven by a powerful longing to please Aki, feeling frustrated and curious when she lacks his attention.

• Yuki – Nonaka Yuki is a white-gold and blue-haired demon hero schoolgirl with indigo eyes and a combat build. A former Hero serving as a Knight-class member at Aki’s mansion, this Hero Clan monitor and kendo expert hides a volatile nature behind a cold facade. Kurumi’s “Sister Flowers” sibling, she assists Maria in training and shares a sensitive, dual-cultivation intimacy with Aki.

• Y – The first initial/part of the name Y Ddraig Goch.

• Nonaka – Sharing a familial connection, the Nonaka sisters—Yuki, Ikumi, Yuzuki, and Kurumi—maintain a composed, unified identity as professional surveillance monitors. Acting as Aki’s companions and Mio’s close security, one petite, long-haired sister with a delicate build observes Aki and Mio’s intimacy with envy, later left physically exhausted after performing her own intimate tasks for Aki.

• Seris – Elite Hero girl from the Vatican, personally selected by the Hero Clan. Golden hair in a side-ponytail with emerald eyes. Composed, elegant, and stubbornly principled. Sent on a close observation mission regarding Aki and the Naruse sisters. Determined and refuses to back down despite warnings.

• Nonaka sisters – A pair of sisters among Aki’s inner circle. Gifted young women. Former Hero Clan agents sent to monitor the Divine Research Society. They have since become allies of Aki and his group.

• Rias – Rias Gremory, a sharp, playful high-class devil and Gremory heiress, is Sirzechs’s sister and daughter of Venelana. Known for her crimson hair, she heads the Occult Research Club, protecting her peerage including Mio, Xenovia, and Maria. As Aki’s fiancée and partner privy to his transmigration, she guides his cultivation while navigating complex feelings toward his pursuit of Grayfia and her mother.

• Himejima Akeno – A buxom, black-haired student and member of the Gremory peerage, this “Lightning Flash” is a key ally to Rias and a devoted lover to Aki. Known for a calm, calculating demeanor that shifts to a sultry energy, she is a central figure in Aki’s inner circle. Dedicated to supporting Rias with magic, she remains a poised and essential presence within the group, even navigating complex personal dynamics.

• Himejima – Akeno Himejima is a tall, curvaceous Kuoh Academy senior, high-ranking Devil retainer in Rias Gremory’s peerage, and a powerful Occult Research Club member known for her strength in combat. Bound by a Soul Contract to Aki, she possesses long black hair and a queen-like demeanor. Combining sadistic charm with maternal authority, she wields golden lightning and is deeply loyal to Rias and Aki.

• Akeno – Himejima is a tall, voluptuous Orc-devil shrine maiden with red eyes, dark wings, and calf-length raven hair. The sadistic, black-bellied “Priestess of Thunder” serves as Rias Gremory’s loyal S+ rank Queen and administrator. As Akira’s soul-bound, dedicated partner, she maintains a deep bond, frequently participating in dual cultivation while constantly longing for his attention.

• Sephie – The younger sister of Wilbert who possesses Demon King-class strength.

• Liala – A white-gold-haired Devil believed to be a God-tier existence under surveillance.

• Naruse – Mio Naruse is a fair-skinned, red-haired schoolgirl with a voluptuous build who serves as a Demon King heir and Bishop in Aki’s peerage. Protected by the Gremory household, this “Sister Flower” evolves from a hesitant tsundere into Aki’s devoted, polyamorous partner. She maintains deep, essential bonds with her sister Maria, friend Kurumi, and her adoptive parents, forming the core Naruse family.

• Isabella – This masked girl with a striking physique and formidable stats is a former Rook serving in Riser Phoenix’s peerage alongside her companion, Xue. Potentially affected by the Breaching process, she is currently awaiting medical treatment from Aki to enable her participation in Dual Cultivation.

• Xue – An athletic Chinese beauty with a bun hairstyle and traditional qipao, this martial-arts prodigy is an A+-rank Rook of the Riser Phoenix peerage. A loyal fighter who pushes her limits to exhaustion, she serves as an operative with Minami to monitor situations and communicate with Aki. She is also a girl potentially affected by the Breaching process.


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Edited by Kanaa-senpai.
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