Chapter 79 Shinra Tsubaki’s Master
Edited by: Kanaa-senpai
Aki wasn’t particularly afraid of being hounded; he simply didn’t have the time to waste.
Things with Miyuna were manageable since they’d already agreed to a once-a-week arrangement, but the situation with Miyajima Tsubaki was the real headache.
While Miyajima Sosuke remained oblivious to his wife’s desires, Miyajima Sakura could see right through them.
It would have been fine if nothing had happened yet, but since the two had already crossed that line, how could the girl stand by and watch her own mother get intimate with Aki? The problem was that Sakura couldn’t exactly lecture him; they weren’t even a real couple.
To put it nicely, they were practicing Dual Cultivation¹ to help each other grow; to put it bluntly, they were just fuck buddies.
Because of this, the girl was forced into a constant battle of wits with her own mother, staying on guard at every turn.
She didn’t even dare tell Miyajima Tsubaki that Aki was a total scumbag with fuck buddies everywhere.
If her mother found out, she’d probably go running straight to his house to beg for her turn.
Currently, Miyajima Tsubaki was only flirting, hoping Aki would take the initiative, but he couldn’t act if he wanted to spare Sakura’s feelings.
(I do want to try a married woman, but if it breaks Sakura’s heart, it’s not worth it. Besides, she’s not the only MILF in the world.) Beyond that, staying passive actually made it easier to set up a mother-daughter “Oyakodon” later.
Since Mother Takamine was still away on business, Aki had only experienced the “Shimaidon” with the Takamine sisters.
He hadn’t had the chance to try the mother-daughter version yet.
Naturally, he couldn’t let Sakura know what he was thinking.
Whether he could actually pull it off would depend on which of the Miyajima women was the better player.
Shaking off those distracting thoughts, Aki focused back on ways to increase his strength.
If he could complete his two fragmented Talents, his power would skyrocket.
Mirror Reflection was easy enough; he and Shinra Tsubaki were already familiar with each other.
If he was shameless enough to ask a few more times, she’d likely give in.
Himejima Akeno’s Lightning Flash Talent was a different story.
He’d had a golden opportunity last time, but he’d fallen just short.
Now that he had to break through her final line of defense, the difficulty would only be higher.
He had originally planned to scout the other adult-game heroines at Kuoh Academy after winning over Sakura, but he decided to put that on the back burner.
With Rias and President Shitori Sona² keeping watch, the academy was the safest place around.
Even the yellow-haired punks and NTR thugs couldn’t use their usual dirty tricks there.
After weighing his options, Aki decided to start with Shinra Tsubaki.
Ever since the Peerage³ Reincarnation failed, Rias and Sona had been busy with God-knows-what, dumping all their responsibilities onto their top Peerage members.
When Aki arrived at the Student Council room, he didn’t even get a chance to bring up Dual Cultivation before Shinra Tsubaki practically drafted him into manual labor.
By the time they finally finished, it was late.
Tsubaki had to rush off to handle off-campus business, leaving Aki with no choice but to head home and cultivate with the others.
This pattern continued for three days.
By Thursday night, Shinra Tsubaki was finally free.
She had noticed Aki’s hard work over the past few days, and her hints about Dual Cultivation finally became explicit.
”Aki, do you want to come over to my place tonight?” asked Tsubaki.
Shinra Tsubaki locked the Student Council door and stood before him, looking radiant.
Under the moonlight, her tall, well-proportioned figure cast a long shadow across the hallway.
Aki felt a sudden jolt of energy, his exhaustion from the long day vanishing instantly.
”Since you’re the one inviting me, Tsubaki-senpai, how could I refuse?” replied Aki.
At 11:03 PM, in a high-end Tokyo apartment, Aki carried Shinra Tsubaki out of the bathroom.
”Tsubaki-senpai, do you live here alone?” asked Aki.
”No,” Tsubaki said, her head swaying as her slender fingers traced circles over his chest.
”I share this place with the President, but she went back to the Underworld last week. It’s just me for now.” Aki wanted to keep talking, but she took the initiative.
”Alright, it’s late. Let’s get to the Cultivation. If there’s anything else you want to know, we can talk about it later.” With a beautiful Stray Devil girl in his arms practically demanding it, he had no choice but to satisfy her.
He carried her into the bedroom and laid her down.
Both were completely bare, embracing as they soaked in each other’s warmth.
Aki captured her soft lips, and they shared a deep kiss while standing by the bed.
His hand slid down to squeeze her rounded buttocks, kneading them firmly as if trying to draw something out.
Shinra Tsubaki broke the kiss to lick his neck, moving down to kiss his well-defined torso.
Her lips stopped at his chest, taking a n**ple into her mouth, teasing it with her tongue and sucking gently.
It was the first time Aki had really had his chest played with.
Men aren’t as sensitive as women, but having her mouth on him sent a jolt of pleasure through him, making him tilt his head back and exhale a sharp breath.
Tsubaki continued her descent, leaving a glistening trail across his abdomen.
She slowly sank into a crouch, taking the already hard and throbbing Little Aki into her mouth.
With her left hand steadying his thigh and her right hand rubbing her own heat, she went to work.
She was clearly overstimulated; ever since she’d first tasted the forbidden fruit, every night had been a struggle against the void.
She couldn’t wait another second; she wanted Aki to possess her violently, to feel that burning dragon fill her completely.
Suddenly, Tsubaki stood up and shoved Aki’s chest.
Caught off guard, he tumbled back onto the bed.
”Tsubaki-senpai, you’re a lot stronger than you look,” said Aki.
”Don’t forget, Aki, I’m a Middle-rank Stray Devil,” Tsubaki said.
”I might not be a brawler, but my strength is leagues beyond any ordinary girl.” She crawled onto him, gripping the length that was pointing straight up.
She spread herself with two fingers and sat down hard.
”Ah!” She immediately bounced up, leaving only half of him inside.
”Heh,” Aki chuckled.
He laced his fingers behind his head, watching the girl tear up from the impact of him hitting her cervix.
As his power had grown, “Little Aki” had definitely seen some upgrades—it was significantly longer and at least two sizes thicker than before.
Shinra Tsubaki wasn’t about to give up.
She was a Middle-rank Devil and his senior.
The first time could be excused as inexperience, but there was no way she was letting a junior take the lead a second time.
(It definitely wasn’t this big last time…) She bit her lower lip, already feeling the sheer girth of him.
The anticipation was overwhelming.
This time, she learned her lesson; she lowered herself slowly, letting him slide into her tight heat inch by inch.
Aki’s lips curled into a smirk, and he suddenly bucked his hips upward.
”Ah!” Tsubaki’s body jolted.
She bit her lip and gave him a playful, indignant glare, but then tried to lower herself again.
The same thing happened.
This time, Tsubaki actually started to get flustered.
”I’m done! You’re just bullying me! You’re so mean, Aki!” Tsubaki cried, pounding his chest.
”Oh? You want me to be gentle, yet you’re hitting me?” Aki said, feeling bold now that he was deep inside her.
”Call me something sweet, and maybe I’ll show you some real love.” Tsubaki’s face turned bright red.
”Good… good little brother…”
”No, closer than that,” said Aki.
It was a rare treat to see the normally cold and stern Shinra Tsubaki so flustered.
”What do you want me to call you? I’ll say it!” Tsubaki said, her eyes dripping with lust.
Aki grinned.
”Call me Master.”
”What?!” Shinra Tsubaki’s real Master was Shitori Sona.
Calling Aki that felt wrong.
”What’s the big deal? It’s just for now,” Aki whispered, his breath hot against her ear.
”Besides, don’t you think calling me ‘Master’ is a little more… exciting?” Just the thought of it sent a wave of taboo through her.
Her body clenched around him instinctively.
”Ugh… ah…” The girl let out a low moan and hugged Aki tight, her dreams of being in control completely forgotten.
”Master… please… love your Peerage member…” As the words left her lips, Shinra Tsubaki offered a silent apology to Shitori Sona in her heart.
But that last shred of guilt was incinerated the moment he began his relentless assault.
—
Summary:
Aki spends several days working in the Student Council to earn time with Shinra Tsubaki. On Thursday night, they finally meet at her apartment for Dual Cultivation. Aki uses the session to push Tsubaki into a role-reversal dynamic, making her address him as ‘Master’ while strengthening his own fragmented talents.
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Trivia:
- Aki is intentionally managing the Miyajima mother and daughter to eventually achieve a ‘Mother-Daughter Bowl’.
- Sona Shitori is currently in the Underworld, leaving Tsubaki alone in their shared apartment.
- Aki’s physical attributes have literally increased due to his rising power levels.
- Shinra Tsubaki is a Middle-rank Stray Devil, making her physically stronger than a human girl
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Character Insight:
Aki shows his manipulative side by using the term ‘Master’ to trigger a sense of taboo in Tsubaki, knowing it will make her more receptive. Tsubaki’s loneliness overrides her loyalty to Sona in the heat of the moment.
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Lore And Worldbuilding Context:
The author focuses on the ‘immorality’ of the ‘Master’ title as a psychological catalyst for the characters’ progression.
—
Glossary:
Notes:
• Aki – Silver‑haired, sharp‑eyed transfer at Kuoh Academy, B‑rank Stray Devil and Dual‑Cultivation peer. Works a contract for Himejima Akeno, dates Rias Gremory and the Takamine sisters, holds “Little Aki,” defeated Miyajima Sosuke, monitors Aisu Academy, bluffs his Gremory status, adopts a scumbag persona while growing Mana. Possesses intermediate demon blood, special nature, transcendent abilities, high soul strength, mental resistance.
• Miyajima Tsubaki – A poised woman in her late 30s, dressed modestly, she is the wife of Miyajima Sosuke, mother of Sakura, and a member of the Miyajima household present at the meeting, currently under hypnosis that heightens her sexual desire.
• Miyajima – Family name of Sosuke, Tsubaki and Sakura.
• Tsubaki – Shinra Tsubaki, Vice President of the Student Council and Sona’s Queen, is a stoic Devil with black wings, clad in a standard school uniform, black lace bra, and silk stockings, her glasses framing a sharp, intellectual gaze. A master of privacy-bound magic, she aids investigations with razor-sharp analysis, masking deep jealousy of Aki’s time with the Occult Research Club—her hidden affection culminating in their first kiss. Though distant to most, she shares an intimate, unspoken bond with Aki, her composed authority concealing vulnerable devotion. As Sousuke’s wife and Sakura’s mother, she outwardly flirts with Aki, blending maternal warmth with seductive charm, her dual roles weaving tension beneath her polished exterior.
• Miyuna – A late-twenties kendo instructor and receptionist at the Miyajima Dojo, she possesses a toned, athletic build honed by martial arts training and exceptional stamina. Infatuated with Aki after their encounter, she harbors a predatory romantic interest, masking her intensity with professional poise. This is the first time she’s brought a man—Aki—to her apartment, marking a bold, personal breakthrough after years of reserved, office-lady decorum.
• Miyajima Sakura – Upperclassman Miyajima Sakura, a striking kendo prodigy with “Sword Heart,” studies at Aisu Academy and now at Aie Academy. Living with Aki—whom she views as a younger brother despite his predatory nature—she is brave, romantically sensitive, a former Kuoh student, a club beauty targeted by Tanaka Hajime, and unaware of the supernatural.
• Miyajima Sosuke – Tall, disciplined kendo master in his late 40s, wearing a crisp white keikogi and hakama, he leads the Miyajima household with quiet authority. A devoted father to daughter Sakura, he balances protective instincts with a gentle smile. Near B‑rank, he’s approaching Grandmaster status, aware of supernatural hints but lacking deep technical insight.
• Sakura – Sakura Miyajima, a third‑year Aisu Academy student and kendo prodigy with the Sword Heart talent, wears a navy blazer and red hakama. Daughter of Sousuke, she treats Aki as a younger brother despite knowing his predatory nature, now lives with him after discovering his supernatural side, and they practice Dual Cultivation together.
• Shinra Tsubaki – Dark‑blue‑haired, refined vice‑president of the student council in a status‑worthy uniform; childhood friend and Queen‑type retainer to President Shitori Sona. A middle‑class reincarnated devil with Mirror Reflection talent, later Demon Bloodline, A‑rank peerage member whose mana surged after meeting Aki, making her a strategic ally and loyal subordinate.
• Himejima Akeno – Akeno Himejima is a tall, graceful senior of the Occult Research Club, wearing the school uniform. She has long black hair, an elegant mature beauty, a large bust, and wields golden lightning. As Rias Gremory’s trusted retainer and confidante, she serves as Aki’s master, giving him a surveillance familiar and overseeing the cleanup of his clash with local punks.
• Himejima – Akeno Himejima is a tall, graceful senior of the Occult Research Club, wearing the school uniform. She has long black hair, an elegant mature beauty, a large bust, and wields golden lightning. As Rias Gremory’s trusted retainer and confidante, she serves as Aki’s master, giving him a surveillance familiar and overseeing the cleanup of his clash with local punks.
• Akeno – TIMEOUT: No response (20.0s) – Unknown error
• Shitori Sona – Shitori Sona, Kuoh Academy’s student council president, sports short black hair, glasses, a stern expression and formal attire. She speaks in a flat, professional tone, is highly competent, and hails from a pure‑blood demon family. As a tactical leader of the Sitri lineage, she handles local supernatural issues by deferring to Rias Gremory.
• Rias – Rias Gremory, 17‑year‑old pure‑blood High‑Class Devil and President of Kuoh Academy’s Occult Research Club, is the authoritative Crimson Ruin Princess with long crimson hair, crystal‑like crimson eyes, demonic wings, and an elegant school‑uniform figure. Determined and observant, she fiercely protects her peerage, mentors Aki as a big‑sister, oversees his training, and is frustrated by her inability to reincarnate him, driving her to meticulously conduct the ritual as both leader and guardian.
• Sona – Shitori Sona, Kuoh Academy’s Student Council President, sports short black hair, glasses, a stern expression, and formal attire. A serious, analytical pure‑blood devil, she seeks a cure for Aki’s unique constitution and handles local supernatural issues by deferring to Rias Gremory.
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Edited by Kanaa-senpai.
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