Chapter 436 Research and Discussion
Edited by: Kanaa-senpai
Aki nodded in understanding.
It figured. Only a goddess with too much time on her hands, skulking about in the shadows, would bother researching this kind of specialized magic.
Of course, none of it would’ve been possible without Liala’s exceptional magical talent. If it were simple enough to whip up on a whim, some other deity would’ve cracked it ages ago.
”Can we make this magic easier to learn? I don’t mind if the effect’s weaker.”
Aki was planning to work with Liala on adapting the communication magic into something more broadly applicable. If they actually pulled it off, the two of them might just go down in history.
Not that either of them cared about that kind of fame.
”Hmm…”
Liala paused to consider. “It should be possible. The main difficulty lies in the Space Magic aspect. If we’re willing to sacrifice confidentiality, the complexity drops significantly.”
Secure communication was important, sure, but most of the time, people were just passing along casual information. Look at cell phones in the Human World—everyone used them, fully aware that their conversations could be intercepted at any moment. If absolute secrecy was required, people used dedicated satellite phones.
Same logic applied here. If confidentiality was essential, individuals could either master the original version themselves or develop something more complex.
Aki wasn’t just planning to simplify the communication magic and spread it across the Three Realms. He also intended to develop a more advanced version exclusively for internal use.
Going from zero to one was difficult. But from one to two? That was easy.
Once the communication magic became widespread, others would inevitably study its principles and draw their own conclusions. Magical geniuses weren’t limited to Liala. Without thorough preparation, Aki’s plans to profit from this magic or influence the Three Realms’ balance of power would likely fail.
But fortune, fame, or even revolutionizing the Inner World’s communication infrastructure—none of these were Aki’s primary objective.
His real goal was simpler: he wanted all his ever-growing harem of girls to be able to contact each other freely.
With a versatile magical communication network in place, the two major organizations led by Takamine’s mother and Sakuramachi Touko could finally launch their official incursion into the Inner World.
Thanks to repeated dual cultivation with Aki, the girls’ combat strength had grown to the point where they could be recognized as Tokyo’s two most powerful organizations. And because one operated in the open while the other stayed hidden, external forces found it impossible to deflect blame toward one, curry favor with the other, or target them individually.
Their only shortfall was a lack of top-tier powerhouses—to be precise, Aki was their sole heavyweight. In every other aspect, they were approaching the level of the pure-blooded Devil families after the Three-Way War.
When Aki forcibly breached God-tier, he’d done so on a whim. But later, when he took stock of the situation, he was genuinely surprised—and overjoyed—to see how far his casual preparations had come.
As the shadowy mastermind behind it all, he decided to tackle the key obstacle preventing the girls from expanding further into the Inner World.
That was when he’d spotted the potential in communication magic—and quickly prioritized it.
Aki and Liala were getting deeply into their discussion. Shela and the other women listened for a while, found it uninteresting, finished their dinner, and departed one by one.
Sephie, invited by her best friend Shela, went to her room to catch up and also settled on a temporary room for herself—right next to Shela’s.
…
…
A week had passed since Sephie and Liala came to the Human World. Rias finally finished wrapping up all her Underworld business and returned with the women of the Divine Research Society.
Aki didn’t ask about the specifics of what they’d gained, but judging from Rias’s enthusiasm and initiative that night, the Gremory household must have made a killing.
Notably, Ravel had accompanied Rias on that excursion and actually managed to forcibly break through her bottleneck.
That morning, Aki was just about to continue his research with Liala when a schoolgirl in a pink princess dress stopped him in his tracks.
”Ravel. Something on your mind?”
”Aki-sama… tonight…”
The tsundere heiress, her golden twin-tails bound in place, fidgeted nervously with her skirt, murmuring something under her breath before finally getting the words out. “I’ve become a High-Class Devil now. Tonight, I can help Xue and Isabella with their treatment.”
Aki hadn’t forgotten about those two still awaiting treatment. He’d been eager to get his hands on the cheongsam girl and the mask girl for quite a while. But those two were so fiercely loyal that, because Ravel hadn’t given the word, they’d rather endure their afflictions than engage in dual cultivation with Aki.
Under those circumstances, Aki couldn’t exactly push the issue. The more loyal they were to Ravel, the more loyal they ultimately were to him. They’d be his eventually, anyway, so he’d let it slide.
”No need to wait until tonight. Let’s start now.”
Aki was an old hand at this. Even though he’d just crawled out of a pile of beauties, he eagerly grabbed Ravel and headed for the bedroom.
”The three of you together—one night might not be enough. Starting now is perfect timing.”
Watching Aki’s back, Ravel felt both shy and overjoyed.
As Aki’s queen, being so desired by her own king naturally thrilled her. And it wasn’t just Ravel—any woman would feel the same happiness when the one she loved showed such hunger for her. There’s a saying: a woman adorns herself for the one who appreciates her.
On the other hand, if a girl doesn’t like you, then nothing you do will ever be good enough. And if she’s the manipulative type, well… she’ll just start building a stable of simps.
Aki’s own room was spacious, but it was currently occupied by the three succubi mother-daughters, along with Kiba Yuhime and Himejima Akeno.
Since all three girls—Ravel, Xue, and Isabella—were having their first time, this environment clearly wouldn’t do.
The blonde twin-tailed devil heiress snapped out of her embarrassment to find herself standing in a familiar room.
”Huh? Aki-sama…”
”Drop the ‘sama.’ It feels weird.”
Aki cut her off. “If you’re not used to calling me by name, do like Mio does—call me Aki-nii.”
Naruse Mio was the same age as Ravel. Both were twin-tailed tsunderes with a touch of verbal venom. The only real difference was chest size—otherwise, they were like two humanoid Pokémon of different colors.
”Mm… Aki-nii. We’re doing dual cultivation in my room?”
”Don’t you want to? If we use my room, we’ll probably have an audience.”
”No…” Ravel considered the image and steeled herself. “My room is fine. I’ll go get Xue and Isabella.”
”Don’t bother. I’ll handle it.”
Aki wrapped an arm around the girl’s slender, delicate shoulders and smiled. “Might as well test out this week’s progress.”
He and Liala had spent a week refining the communication magic, and while they’d made improvements, plenty of issues remained. At this stage, it wasn’t so much “making a call” as forcefully shoving a message through Space Magic to another location. If luck was on your side, it reached the intended recipient. If not…
Either nobody answered, or someone else overheard.
This time, luck was on Aki’s side—Xue and Isabella received the message. But because it was audio transmission, all the other girls around them overheard it too.
Aki didn’t mind. They were in his own home, after all.
But the two schoolgirls were blushing crimson under the teasing gazes of their close friends, unable to lift their heads the entire way there.
After notifying Xue and Isabella, Aki didn’t just wait around. He sent another fully-functional targeted message to Liala, letting her know that today’s research session was on hold.
Liala asked curiously what was going on. Aki answered honestly, without any pretense.
In response, he got a huff of playful irritation. Even through the communication magic, he could practically feel the goddess’s exasperation.
Over this past week, their research sessions had a tendency to devolve into other activities. At first, Liala found it distracting—the research often got delayed. But by the end of the week, aside from the moments of climax, the two of them could carry on a perfectly normal conversation while engaging in dual cultivation.
That was the power of God-tier self-control and multi-tasking capabilities. With their souls strengthened, splitting their attention posed virtually no challenge at all.
”If you don’t mind, you could always join us. We can dual cultivate and research at the same time.”
”Tch. If you keep that up, you’re going to work yourself to death, you pervert!”
Liala was enough of a chaos gremlin that she didn’t object to group activities on principle. But this was someone else’s first time—it would be tactless for her to intrude. A week ago, when it was her own first time, nobody had butted in, and she’d had Aki all to herself for almost an entire day. At the time, she hadn’t thought much of it. But after this past week, Liala finally understood just how rare a privilege that was.
Aki chuckled, deliberately needling her. “Researching magic while rapidly boosting your power—most people couldn’t even dream of an opportunity like that.”
”Ha…”
Liala cut the connection, lazily sinking back into the covers. Her pale, delicate hand restlessly found its way to Sephie’s full, generous chest beside her.
Lately, Sephie’s intentions to find her own place had faded. It was comfortable here, she had her best friend and her niece, and soon her son would be back—so staying made meeting up easier. Rias, her official master, had returned without complaint and had been quite welcoming. So Sephie naturally stopped bringing up the subject of moving elsewhere.
Sephie shot Liala a look and swatted her hand away, unamused.
”What’s wrong? No research today? Someone stole your thunder?”
The teasing in her voice was so thick you’d have to be an idiot not to catch it.
Sephie might not have experienced intimacy firsthand, but that didn’t mean she lacked desire. Every day, Liala came back looking thoroughly satisfied, carrying that distinct scent of a man. During the day, Liala monopolized Aki; at night, she insisted on sleeping beside Sephie—and she couldn’t keep her hands to herself.
But they’d been sharing a bed for years, so it wasn’t easy to kick her out. And if Sephie made a big deal out of it, she’d just end up looking like she cared too much. After all, Liala showered before bed, and their physical closeness was nothing new between them.
But lately, with Liala’s growing experience, her touches had become… more brazen.
A week of this had left Sephie feeling strangely unsettled. Yet Liala got to satisfy herself the next day, while Sephie could only endure.
Now that she finally had a chance to needle her friend, Sephie wasn’t about to let it slide.
”Dear sister, you’ve already got a child, and you’ve never experienced that pleasure—that’s downright tragic.”
Liala gave as good as she got, her voice dripping with false sympathy. “You should just give in to that boy Aki already. I won’t say much else, but he’s definitely… well-endowed and skilled.”
—
Summary:
Aki and Liala research communication magic while Aki prepares for dual cultivation with Ravel, Xue, and Isabella. Liala’s research gets postponed, leading to a teasing exchange with Sephie about their intimate experiences. The chapter closes with an author’s meta-commentary about writing constraints and platform incentives.
—
Trivia:
Aki’s goal for communication magic is to enable his harem to stay connected across worlds.
The two major organizations in Tokyo are led by Takamine’s mother and Sakuramachi Touko.
Ravel’s loyalty to Aki is demonstrated through her willingness to let Xue and Isabella undergo dual cultivation.
Liala and Sephie have been sleeping together for years, with increasingly intimate tension.
Rias returned from Underworld business with profit for the Gremory household.
The author regrets slow update pace limiting explicit scene descriptions.
Sephie is a mother whose son is expected to return soon.
Dual cultivation with Aki boosts the girls’ power significantly.
The Divine Research Society accompanies Rias to the Human World.
Liala’s research chemistry with Aki has evolved to allow dual-tasking during dual cultivation.
—
Translation Notes:
Notes:
• 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.
• Liala – A white-gold-haired Devil believed to be a God-tier existence under surveillance.
• Sakuramachi Touko – Sakuramachi Touko is a tall, voluptuous, red-framed glasses-wearing succubus and pure-blood mental mage. Disguised as Aki’s intelligent, cool-demeanored classmate, she uses calculated manipulation and keen observation within his social circle. After climbing from C-Rank to B-Rank through dual cultivation with Aki, she now finds other men repulsive, displaying deep, genuine attachment to him.
• Sakuramachi – Sakuramachi Touko is a tall, voluptuous, long-haired succubus and pure-blood mental mage who serves as Aki’s devoted, submissive strategist. A B-Rank group member, she maintains a cool classmate persona to hide a cold interior. While she loathes other men, she uses her keen observational skills to manage their organization and investigate infiltrators, remaining a key figure in Aki’s inner circle.
• Takamine – Kasumi Takamine, a widowed matriarch and aunt, has raised Aki since his parents moved abroad, mentoring him in magic. Alongside her tall, voluptuous daughters Ayame and Sayuri—now Gremory corporate partners—she helps Aki lead their organization and investigate Kuoh infiltrators. Their home acts as a liberal sanctuary, rooting Kasumi’s deep influence across their family and business.
• Sakura – An Aisu Academy third-year and kendo prodigy with the Sword Heart talent, Miyajima Sakura surpassed her father, Sousuke. Wearing a navy blazer and red hakama, she possesses a sharp lack of hesitation and lethal decisiveness in combat. She manages Aki’s organization, lives with him like a younger brother despite his predatory nature, practices Dual Cultivation, and actively seeks his attention.
• Touko – Sakuramachi Touko is a pure-blood succubus and B-Rank mental mage posing as Aki’s classmate to hunt Kuoh’s infiltrators. Though her hair color fluctuates, she masks an icy, eerie nature with a demanding, outgoing facade. A voyeur who frequently engages in intimate activities with Aki, she shares a deep bond with him, utilizing dual cultivation to advance their powers while aiding his investigations.
• Shela – A petite, white-haired Succubus Queen with ram horns and violet eyes, she balances youthful looks with a mature, cunning personality. A survivor of the Three-Way War and intuitive teacher, she lives in Aki’s household as a devoted partner and mother to Mio, Lucia, and Maria. Though she once sought to pair Aki with her daughters, she now claims him, blending matronly grace with strategic protection.
• Sephie – The younger sister of Wilbert who possesses Demon King-class strength.
• 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.
• Gremory – Rias Gremory, a pure-blood devil of the prestigious Gremory household, has striking crimson hair, blue eyes, a curvy figure, and a prominent bust. Wielding top-level demonic power, she governs Kuoh Academy’s hidden hierarchy and leads her Gremory family members in a high-stakes competition against the rival Phoenix clan.
• 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.
• 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.
• 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.
• Kiba Yuhime – A tall, mature beauty with white-gold hair, indigo eyes, and a large bust, Kiba Yuhime (formerly Kiba) is Aki’s devoted partner. Recently elevated to SS-Rank through dual cultivation, she pairs a confident demeanor with a highly proficient, submissive dedication to Aki, actively taking initiative in their encounters and possessing greater experience than Asia.
• 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.
• Yuhime – A tall, mature beauty with white-gold hair, indigo eyes, and a large bust, Kiba Yuhime is an Occult Research Club member who recently returned to her female form. As Aki’s devoted partner, she formed a Soul Contract with him, reached SS-Rank via dual cultivation, and has greater experience than Asia. Confident yet submissive, she takes initiative but also annoys Aki by suggesting he train under Lord Sirzechs.
• 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.
• Kiba – Yuuto (Yuto) Kiba is a handsome, 1.7m blond Devil, Occult Research Club member, and polite knight in Rias Gremory’s peerage. A master swordsman and Holy Sword Project survivor, he recently transformed by reconciling with his past trauma and mastering his Balance Breaker form. Despite a refined campus prince demeanor, he holds deep hatred for the Church, Fallen Angels, and priests from his past.
• Y – The first initial/part of the name Y Ddraig Goch.
• Mio – Mio Naruse is a fair-skinned, voluptuous Kuoh Academy student with red twin-tails. As the Demon King’s daughter and Maria’s sister, she is a powerful Bishop in Aki’s peerage, currently managing sealed abilities involving gravity and hellfire. A proud, envious tsundere, she shares a deep, intimate bond with Aki while her presence often invites scrutiny, including comparisons to figures like Chisato.
• Naruse Mio – A gifted 17-year-old and daughter of the late Demon King Wilbert, she is a defiant, tsundere high schooler with signature red twin ponytails. Aki’s loyal girlfriend, she carries her father’s legacy while navigating the Gremory peerage and political intrigue. Despite her naivety, she boldly rejects the throne and manipulation, relying on Aki’s guidance and their bond to survive the supernatural world.
• 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.
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Edited by Kanaa-senpai.
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