Crossover-Isekai 154

Chapter 154 Lower page


Edited by: Kanaa-senpai


 Feeling Aki’s dominance and bravery, a weak willingness to surrender naturally arose inside Shinomiya Natsuha’s heart, and she moaned with a trembling voice: “Yes, Aki-sama, I, Shinomiya Natsuha, am yours forever. Do with me whatever you want!”


 Hearing her be so sensible and yielding, Aki satisfyingly grabbed her snow-white, plump, beautiful breasts, thrusting rapidly.


 His lower abdomen heavily crashed against her fair, plump, beautiful buttocks, causing waves of dazzling buttock ripples to fluctuate.


 ”It’s so big and so deep???! Good brother, good Master, you’re fucking me to death!”


 Shinomiya Natsuha helplessly leaned her head against the pillow.


 The intense piercing pain and numbness completely surrounded her, causing her to moan for a while and sigh for a while, sometimes appearing to whisper in a low voice, and sometimes appearing to mutter to herself.


 While Aki pumped and thrusted, he from time to time used his hand to slap her fair, beautiful buttocks.


 Her beautiful buttocks turned fiery red, and the space between her thighs also became like a swamp.


 ”Ah, Aki-sama, use a little more force?!”


 Shinomiya Natsuha moaned indistinctly, her hands tightly grasping the Sheets.


 The sound of flesh-on-flesh impact clapped and snapped in the room, along with the heavy panting of a man and a woman.


 The mysterious scent of male and female s*x hormones floated in the air.


 The Great Dragon’s pumping and thrusting became more and more intense, the battle situation approached the climax, and Shinomiya Natsuha and Aki were advancing toward the peak together.


 Suddenly, a wave of intense pleasure fiercely rushed toward Aki.


 With one hand pressing down the young girl’s beautiful head and the other hand supporting her slender waist, he thrusted heavily a few times, his lower spine felt a surge of numbness, and the massive object violently swelled.


 Shinomiya Natsuha felt the changes in Little Aki (Aki’s member), desperately thrusting her beautiful buttocks, moaning incoherently: “Master?… Brother?… Anata?, e**culate into me, let it all come inside! If I get pregnant, I will give birth to it for you!”


 Aki lay flat on the young girl’s smooth, delicate, pink back, the volcano crashed and erupted, waves of scalding lava spraying out continuously, while he took her translucent, flushed earlobe into his mouth.


 ”I’ve e**culated all of it into you, dumped all of it inside your Flower Palace (Hanamiya)¹!”


 The sensitive flower core received the watering, and Shinomiya Natsuha trembled without stopping, collapsing limply onto the bed.


 Until the Great Dragon stopped its eruption, she remained blurred-eyed, enjoying the aftertaste of the climax.


 After this one time, the big-breasted schoolgirls experiencing their first time truly could no longer endure the conquering and attacking, but Aki would not be satisfied so easily.


 Just like a little child who had obtained a new toy, he continuously tried and developed new ways to use her.


 Every single patch of skin on Shinomiya Natsuha’s body was dyed a milky white color.


 The pink, tender daisy, the round and slender beautiful legs, the soft, giant breasts, the white and tender little hands, the sexy little feet, the warm and wet little mouth, and even the light-purple, smooth long hair—Aki did not let a single part go.


 From head to toe, he thoroughly turned Shinomiya Natsuha into his own shape.


 Because of this form of lovemaking, Aki did not worry about her body either, so he also kept doing it without stopping.


 It wasn’t until the big-breasted schoolgirls were played with until she wildly discharged for the fourth time that he also felt a wave of numbness in the dragon’s eye, the dragon head expanding violently as he hurriedly pulled the Great Dragon out from between her thighs, bringing it close to her flushed little mouth.


 Shinomiya Natsuha did not show any dislike at all, opening her little mouth to take in that large dragon head, letting Aki e**culate everything entirely into her mouth.


 After the big-breasted schoolgirls swallowed all of the fiery, thick Essence² down, she still did not let go, sucking continuously for a very long time, until she sucked every single bit of the remaining s**men dry without leaving anything left.


 The great battle stopped and rested, and the time also arrived at late night.


 Aki stroked her light-purple, smooth long hair, contentedly holding Shinomiya Natsuha’s soft, tender body in his arms, and slowly fell asleep.


* * *


 The next morning, Aki woke up refreshed to wash up and brush his teeth.


 Right until he finished eating the breakfast prepared by Takamine Sayuri and prepared to go to school, Shinomiya Natsuha was still in a deep sleep.


 Yesterday’s bout of great battle had not only consumed a large amount of her Stamina and energy, but her plump flesh was also tormented by Aki until her entire body was sore and aching.


 Even though there was the repair of Essence energy, Shinomiya Natsuha was merely an ordinary person who had not mastered Mana³; a few hours of time was still not enough to fully recover.


 Aki did not call her to wake up either, leaving her to continue sleeping in the bedroom.


 He also instructed Takamine mother to talk a little bit about the Inner World⁴ matter after the other party woke up, teaching the other party to master Mana, and by the way, absorb her into the organization.


 Shinomiya Natsuha lived alone, and her mother was currently on a long-term business trip.


 This instead made things convenient for Aki, needing only to help her request a temporary leave from the school’s Teacher.


 The Teachers of Kuoh Academy had already become accustomed to Aki helping girls request leaves of absence and no longer found it strange.


 After a school year had passed, no Teacher would make things difficult for him over this matter.


 Although the relationship between Aki and Rias had not been made public, the Teachers knew more inside information compared to the students.


 Even the most straightforward Teacher knew about the ambiguous relationship between Rias and Aki, and knew even more that Rias could command that group of people on the school’s Board of Directors.


 Arrival at school, the first thing Aki did was go to the Occult Research Club (ORC) to tell Rias about Masaru’s “disappearance” matter.


 Rias merely nodded faintly, “I will send someone to handle the aftermath later. Though as for you, haven’t you been a bit too active recently? The matter of the Miura Company hasn’t been over for very long.”


 Aki scratched his head, saying helplessly: “I didn’t want to either, but these matters always find their way to me. Instead of enduring it passively, I thought it would be better to take the initiative to attack.”


 Regarding the matter of Aki being annoyed to no end by the little Yellow-haired Punks recently, Rias also knew a bit about it.


 She didn’t care about the deaths of those Yellow-haired Punks at all; she was just looking at her own family’s strongest Peerage⁵, hooking up with other women every day, which made her inner self feel a bit displeased and jealous.


 However, having known Aki’s virtue and his Dual Cultivation Ability⁶ long ago, no matter how much jealousy Rias tasted, it wasn’t easy to break out, not to mention the two of them hadn’t made the final step of Breaching yet.


 Aki also saw through Rias’s little thoughts, thought about it, and said: “President Rias, I am not just playing around either. I am also thinking of ways to continue Breaching. I have stayed at S-Rank⁷ for quite a bit of time too, and there is already absolutely no room left for improvement.”


 ”I have no way to give you guidance along the path of the Martial Way, but if you want to reach SS-Rank, you can try to continue purifying Mana to elevate your Stray Devil Lineage⁸. Most high-Class Stray Devils basically have absolutely no problem with SS-Rank strength.”


 Rias crossed her arms over her chest, her plump and erect giant breasts shaking a bit, watching which caused Aki a wave of stray thoughts.


 The proud, red-haired magic-breasted princess was incomparably satisfied with Aki’s expression.


 As expected, she was still more attractive than those “mediocre women.”


 ”I am currently still underage, and my lineage hasn’t been able to thoroughly ignite yet. Along with my continuous growth, my lineage naturally will become thicker and richer, and my strength will continue to rise.”


 Rias flicked the red hair strands near her ear, “My brother is a case where his bloodline was completely developed, and his strength reached the Demon King class very easily.”


 Aki nodded, “Understood, President. I will try toward this direction.”


 (Right now, even my High-Class Stray Devil Lineage is still in a defective state, let alone the most High-Class Stray Devil and Demon King.)


 Although his mouth agreed well, Aki thought so in his heart.


 He actually still had a bit of doubt.


 According to Rias’s statement, their bloodline Talent was actually very strong, it just needed time to grow and develop.


 But if that were the case, the Talent he copied over should also work.


 Could it be because it failed to thoroughly copy?


 Mm, the possibility is very high.


 As for the initial Intermediate Demon BloodLINETalent, that was obtained from Shinra Tsubaki.


 She was a Stray Devil through Evil PiecesReincarnation, so thinking about it, she probably did not possess the Sitri family’s Stray Devil Lineage.


 Among the currently remaining Pure-blood Demon families, every single bloodline has its characteristics, among which the most typical is the Phenex family’s bloodline.


 Akira is a Stray Devil yet possesses the characteristics of an immortal bird.


 It is said that the lineage of the mythical beast Undying and Unextinguished is fused within it, which is what caused the Phoenix family to possess the ability of being immortal and indestructible, regenerating from fire.


 It was also this point that completely confirmed the relationship between the ancient Stray Devils and the nowadays Pure-blood Demons.


 If the latter were not manufactured by the former, how could there possibly be this kind of strange bloodline Talent? The mythical beast Phoenix certainly did not have the idea of combining with a Stray Devil to give birth to descendants.


 Leaving the Occult Research Club (ORC), Aki took out yesterday’s remaining pink envelope from his portable space.


 Shinomiya Natsuha, who best suited his taste, had already been taken down.


 This time, what he chose was a somewhat special love letter.


 Different from other love letters, the signature of this love letter had two people:


 Sakuramiya Saya and Sakuramiya Hinata.


 The two were sisters, but not biological sisters, but rather sisters who became so after two single-parent Households combined.


 The older sister, Saya, was the captain of the Kyudo Club, and the younger sister, Hinata, was also a main force of the Kyudo Club.


 Though called sisters, in reality, the two were only separated by a few months, and both were first-year freshmen.


 —


 Summary:


 Aki satisfies the yielding Shinomiya Natsuha through a fierce intimate encounter before preparing for his standard academy day. He coordinates with the Takamine household to integrate the baseline human girl into their secret organization. Arriving at Kuoh Academy, he updates President Rias on a sudden local disappearance while quietly contemplating his bloodline evolution limit


 —


 Trivia:


 - Natsuha’s mother is away on an extended business trip, minimizing outside interference

 - Aki’s copying talent might have yielded an incomplete or raw version of the Sitri bloodline parameter


 —


 Character Insight:


 Rias showcases visible irritation and romantic jealousy regarding Aki’s frequent dalliances, yet relies on his unmatched power profile as her peerage’s anchor.


 —


 Glossary:


,


Notes:


• Shinomiya – Natsuka, who represents the Shinomiya family alongside Natsuha and Kahana in a large traditional estate, is a schoolgirl with exceptionally voluptuous, big-breasted proportions. With their mother away on business, her association with Aki on the day prior to current events triggers widespread gossip among the student body within this crossover world.

• Natsuha – A young high school student at Kuoh Private Academy with a flat, fair lower abdomen and rounded thighs. She wears a cotton panty and is a practitioner of Aikido. A beautiful first-year high school student with light purple long hair, a charming face, and a sultry, hot, voluptuous body. She has a bright personality and is a highly capable practitioner of Aikido. The given name of Shinomiya Natsuha, a pure girl who rapidly adapts to a submissive, wanton persona when stimulated, openly begging for physical fulfillment from her master.

• Aki – Uesugi Aki, Takamine’s adopted son and S-Rank Gremory leader, is a 177cm pretty boy with bat wings, a barbed tail, and crimson eyes masking a cold, detached strategist. Wielding azure flames, mental magic, hypnosis, a portable space, and a talent-copying system, he navigates Kuoh Academy to prevent tragic timelines while protecting the Sakuramiya sisters. He maintains dominant, intimate bonds with Shinomiya Natsuka, Kasumi, Ayame, Mittelt, and Kalawarner, yet deliberately avoids commitments to prevent triggering narrative templates. Self-aware within a complex web of schoolgirls, he adheres to strict personal baselines against non-consensual coercion while employing tactical psychological manipulation—including forcing a stalker’s suicide through suggestion—and engages in dual cultivation practices.

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

• Takamine Sayuri – Aki’s reserved, non-blood-related younger sister with short brown hair and gentle eyes, always dressed in a neat school uniform; excels at chores and possesses a ‘Flexibility’ talent, displaying submissive, masochistic devotion centered entirely on Aki, with maternal instincts and an unwavering desire to remain by his side, appearing in Takamine-ke no Nirinka – The Animation.

• Takamine – Kasumi Takamine, a widowed matriarch, shares her surname with daughters Ayame and Sayuri — tall, curvaceous, voluptuous Transcendents who, under Aki’s guidance, have become corporate partners of the Gremory family. Aki, their adopted brother, now leads an organization, reshaping the household into a liberal, emotionally charged sanctuary where magic and intimacy intertwine.

• Sayuri – Younger Takamine sister: long light‑purple ponytail, slender provocative figure in a tidy school uniform. Polite and submissive to her mother, she handles chores and cooks for Aki, showing masochistic devotion and urging her mother into an intimate circle. B‑Rank, she stays in touch with other girls Aki helped, stands obediently behind her mother in confrontations, and is part of the ‘Sister Flowers’ duo. In Dual Cultivation she trembles, is emotionally expressive, extremely sensitive, and faints from pleasure.

• Rias – Rias Gremory, 17, is a proud, authoritative pure-blood demon noble and Occult Research Club President. Tall and curvaceous with long crimson hair and flare wings, this princess administers Kuoh Town and commands the school Board. Wielding the Power of Destruction and Evil Pieces, she possessively leads her family’s strongest Peerage, mentoring Aki like a big-sister professor.

• Masaru – A high school student at Kuoh Private Academy who carries a schoolbag. He is depicted as an overconfident yellow-haired punk with a crude disposition. A tall high school boy with dyed deep-yellow hair, dark skin, a naturally thuggish face, and two silver earrings. He harbors intense resentment and entitlement over failed romantic pursuits. The given name of Ooshika Masaru, an individual who defines his entire existential meaning by his physical performance and undergoes complete submission upon being outperformed. A blonde delinquent carrying the reputation of a yellow-haired punk who prides himself on his physical proportions and dominance, only to face absolute psychological defeat during a confrontation

• Miura – The Miura family, a powerful lineage operating the Miura Corporation in Meguro Ward, is represented by the antagonist Akira. Known for commanding multiple Transcendents and maintaining deep criminal ties with the local Yakuza underworld, the family exerts immense corporate and illicit influence.

• Shinra Tsubaki – Shinra Tsubaki – dark‑blue hair, 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 a Demon Bloodline A‑rank peerage member; her mana surged after meeting Aki, turning her into a strategic ally and loyal subordinate.

• Tsubaki – Shinra Tsubaki, Sona’s Queen and Student Council VP, is a stoic, bespectacled beauty with black wings. A master of privacy magic, she balances sharp, intellectual authority with a hidden, shy vulnerability that surfaces during intimate moments. Though composed and maternal as Sousuke’s wife and Sakura’s mother, she shares a deep, unspoken bond with Aki, masking her jealous devotion with playful, seductive charm.

• Shinra – Shinra Tsubaki – dark‑blue hair, 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 a Demon Bloodline A‑rank peerage member; her mana surged after meeting Aki, turning her into a strategic ally and loyal subordinate.

• Akira – A blond, arrogant punk youth who serves as a minor antagonist and the son of a prominent corporate president. Traumatized by past supernatural encounters, he seeks revenge against Aki using supernatural muscle. Turning crimson with envy, he abuses power with his inner circle and uses his status as a yakuza patriarch’s adopted son to threaten enemies, before collapsing in terror and being executed.

• Sakuramiya – Sakuramiya is the family name of Saya and Hinata, adoptive stepsisters who attend Kuoh Academy and practice together in the Kyudo Club. They share a deeply intertwined personal and emotional relationship. Their long-established household is located in a quiet residential neighborhood, where their father works overnight shifts and their mother returns home late.

• Hinata – The younger Sakuramiya sister who possesses a bold, lively, and generous personality, known for her spontaneous actions such as modifying correspondence.

• Sakura – Miyajima Sakura is an Aisu Academy third-year, kendo prodigy with the Sword Heart talent, and Sousuke’s daughter, whom she surpassed. Wearing a navy blazer and red hakama, she possesses a sharp lack of hesitation and profound lethal decisiveness in combat. She manages Aki’s organization, lives with him like a younger brother despite his predatory nature, and practices Dual Cultivation with him.

• Saya – A tall, elegant high schooler with deep purple hair in a ponytail, this Kyudo Club member has a gentle Yamato Nadeshiko demeanor and unshakeable mind. Privately, she is the protective, dominant partner in a taboo romance with her sister Hinata, risking everything for her. Deeply infatuated with Aki, she even skips club activities to offer her home for their first intimate encounter.


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Edited by Kanaa-senpai.
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