Crossover-Isekai 366

Chapter 366 The Secret of Life III


Edited by: Kanaa-senpai


 Many years ago, during the war between the Three Factions, they all suffered heavy losses.


 It is unclear which race started it, but the Three Factions tried to recruit humans from the Human World to their side.


 Human strength was very small compared to the Three Factions, but it was a force that could grow and renew itself.


 Naturally, humanity did not want to get involved.


 Ordinary people would not even count as cannon fodder in such a conflict.


 However, once the Three Factions noticed humanity, they would not let them just watch from the sidelines while getting stronger.


 The result was that the strongest humans were forced into the war.


 Among them was the Hero Clan.


 Jin Toujou, a genius of the Hero Clan’s new generation, already possessed Demon King-class strength and was thrust into the chaos of the top-tier combatants.


 He ended up clashing with Sephie, the younger sister of Wilbert, who held equivalent Demon King-class power.


 Meanwhile, Raphaelene, possessing God-tier strength, acted under the command of the Heaven World in an attempt to suppress them both.


 However, restricted by the world’s rules, she could not unleash her full God-tier prowess.


 She did not anticipate that both Jin Toujou and Sephie were ruthless characters who, at the first moment of crisis, decisively engaged in “blood-bursting”1 (overloading their essence).


 The collision of these three formidable forces—specifically the space-manipulation powers intertwined within Jin Toujou’s output—shattered the void.


 The trio wandered the rift for a long time before accidentally drifting into the lair of a dormant Ancient Dragon.


 To return to their world, the three began to work together, but no real affection grew between them.


 Sephie and Raphaelene were beautiful, but Jin Toujou, the pride of the Hero Clan, knew his place.


 Neither Sephie nor Raphaelene respected a human-born person like Jin Toujou.


 Also, Raphaelene liked soft, fragrant girls more than men.


 She and Chisato Hasegawa were actually a yuri couple, even though they pretended to be close like sisters in public.


 After the trio’s attempts to break through space awakened the dormant Ancient Dragon, the creature—perhaps due to the faint trace of Dragon Race blood within Jin Toujou—took a sudden interest in him.


 With the Ancient Dragon’s assistance, Jin Toujou obtained a purer Dragon Race bloodline, yet possessing only Demon King-class strength, he could not fully digest the Ancient Dragon’s gift.


 In the Dragon Race, an inability to process excess energy naturally leads to an urge to vent it upon the opposite s*x.


 Sephie and Raphaelene were, of course, unwilling, but the Ancient Dragon refused to release them unless they complied.


 Ultimately, the three reached an agreement.


 Sephie used a secret technique to draw the undigested bloodline Essence out of Jin Toujou, intending to preserve it and return it to him once he grew stronger.


 Raphaelene, meanwhile, entered into a Contract, guaranteeing their safety until they could return.


 However, Sephie’s power at the time was only Demon King-class.


 This potent Essence was entirely uncontrollable; the moment it entered her body, it absorbed her own bloodline, forming a life embryo.


 A virgin birth, caused by an accident—Sephie could not accept it, yet under the surveillance of the Ancient Dragon and Jin Toujou, she had no way to destroy the life.


 Sephie was stubborn and fierce.


 Just as she prepared to perish together with them, Raphaelene, desperate to return home, offered to act as a surrogate.


 Sephie, relieved of the burden of bearing the child herself and losing only a bit of bloodline Essence, agreed.


 The Dragon Race’s bloodline Essence was truly absurd; the moment the tiny embryo entered Raphaelene’s body, it absorbed her bloodline, further enhancing itself.


 The truth is often cruel.


 Basara Toujou was born from compromise, not from love.


 The facts sound less romantic than Aki’s memories suggested, but this reality makes more sense.


 Three people of different races, who were trying to kill each other moments before, could not fall in love so easily unless Jin Toujou had a “Charm Talent” that could influence even Demon King-class or God-tier beings.


 Upon completing a second life-transcendence—reaching the God-tier—one can autonomously choose whether to conceive life, rather than leaving it to chance.


 This is why Chisato Hasegawa recently asked Aki if he wanted a child; she truly could become pregnant at any moment.


 The price, however, is that after conception, the child within the womb constantly drains the mother’s energy, leading to significant weakness.


 Moreover, the moment of birth is their most vulnerable state.


 This was like the fantasy stories Aki had read.


 In those stories, powerful divine beasts grow weak during pregnancy and stay weak against even small threats when giving birth.


 In most novels, the main character appears at this exact moment.


 They either kill the beast or save it, earning its favor and maybe getting the newborn child.


 But reality is not a novel.


 Furthermore, once the three returned, they would inevitably be hunted.


 The existence of Basara Toujou could not be hidden, and if Raphaelene were to renege on their deal, Jin Toujou would have no recourse.


 Consequently, it was not until Basara Toujou was born that the Ancient Dragon opened the interdimensional rift and allowed them to depart.


 Basara Toujou was naturally raised by Jin Toujou.


 The bloodline Essence Sephie lost was long since replenished, and thanks to this encounter, she even grazed the key to “Breaching,” entering into deep seclusion.


 With the Ancient Dragon’s help, Jin Toujou had long since become a God-tier, and he had gained a son with peerless Talent.


 The only regret was failing to possess those two beauties, but with his current strength, women were never in short supply.


 Having a son also meant he did not need to marry, allowing him to lead a life of debauchery—truly the best of both worlds.


 From beginning to end, the only person to suffer in this affair was Raphaelene.


 Even though she maintained her virginity through a special method to birth Basara Toujou, her state of weakness did not change.


 Furthermore, the loss of her bloodline Essence could not be concealed from the other Chief Gods of the Heaven World.


 Before she was sealed and punished, she told everything to Afreya—that is, Chisato Hasegawa.


 Chisato Hasegawa watched helplessly as her beloved sister was sealed away.


 She wanted revenge, only to realize that aside from the Ancient Dragon slumbering in an unknown dimension, the other Chief Gods of the Heaven World were the real culprits.


 Raphaelene had not been defiled, nor had she betrayed anyone; she had simply been forced to act as a surrogate to return home, only to be punished as a result…


 It was a deliberate act by those Chief Gods!


 Chisato Hasegawa could not take on the Chief Gods of the Heaven World alone.


 To save her sister and lover, she had to scout for targets with high potential.


 The first, naturally, was Basara Toujou, who carried her sister’s bloodline.


 But potential is merely potential; relying on Basara Toujou to defeat the Ten Core Gods and rescue Raphaelene was a hopeless, long-term prospect.


 Just as Raphaelene was desperate to return, Chisato Hasegawa was equally desperate to rescue her, even if it meant doing so a day sooner.


 Thus, while protecting and observing Basara Toujou, she began to scout for others in the Human World with high potential.


 Aki, who had achieved rapid growth and obtained the Red Dragon Emperor gauntlet, naturally entered her field of vision.


 After their meeting in the Kuoh Academy infirmary, Aki’s abnormal behavior drew even more of her attention.


 Given Aki’s strength at the time, he was unable to detect Chisato Hasegawa’s covert surveillance.


 The secret of his “Dual Cultivation Ability,” and the details of his transmigration that he had shared with Rias, had long since been discovered by Chisato Hasegawa.


 From that moment on, her focus shifted from Basara Toujou to Aki.


 As for why she was so proactive, it was because she had staked everything on Aki.


 After observing him for over a year, Chisato Hasegawa was convinced that no one had greater potential than Aki, and no one converted that potential into strength faster than he did.


 Furthermore, based on her observations, she concluded that while his private life was a bit chaotic, he was trustworthy in all other respects.


 The final factor was herself.


 Having peeped on Aki for so long and witnessed so many scenes of “Dual Cultivation,” the deep-seated desires Chisato Hasegawa had hidden in her heart were ignited.


 As the Goddess of Beauty, Love, and Lust, it was impossible for her to be disinterested in the affairs of men and women.


 Previously, she could rely on intimacy with Raphaelene for comfort, but having spent these years enduring loneliness while watching Aki engage in “Dual Cultivation” with girls every day, she had long been restless.


 She carefully chose this evening for her move.


 Even if Aki breached through her virgin Primal Yin, she would still insist on signing a Soul Contract.


 Although she had watched him for over a year and believed he would assist her, an extra layer of insurance was always better.


 This insurance would also bolster Aki’s strength and deepen their intimacy—why wouldn’t she? Of course, the final decision remained in Aki’s hands; Chisato Hasegawa had simply employed a fair and square “Yang Gambit.” Even if Aki did not want to confront the Ten Core Gods to save Raphaelene, the moment he became intimate with Chisato Hasegawa, the Ten Core Gods would come looking for him.


 Once Aki “Breached” into the God-tier like Jin Toujou, he wouldn’t need to worry much about his own safety, but the Ten Core Gods certainly would not let Chisato Hasegawa off.


 —


 Summary:

 The chapter recounts the historical war between the Three Factions, detailing the forced recruitment of humanity and the tragic circumstances surrounding the birth of Basara Toujou. Jin Toujou’s encounter with an Ancient Dragon, coupled with Sephie and Raphaelene’s forced cooperation, serves as the catalyst for current events. Chisato Hasegawa’s machinations to save her lover, Raphaelene, drive the plot forward as she shifts her focus to Aki as a potential savior.


 —


 Trivia:

 The birth of Basara Toujou was a compromise to satisfy the Ancient Dragon and ensure the trio’s escape from the void, rather than a romantic union.

 Raphaelene acts as the surrogate mother for Basara Toujou to avoid the energy depletion and vulnerability that pregnancy causes to high-level beings.

 Chisato Hasegawa, also known as Afreya, is the sister and lover of the sealed Raphaelene, and she seeks potential candidates to confront the Ten Core Gods.

 Chisato Hasegawa believes that Aki possesses the highest potential and the fastest growth rate among all observed candidates for saving Raphaelene.


 —


 Translation Notes:

1 This term refers to a common trope in cultivation and battle-fantasy novels where a character forces their internal energy (bloodline, mana, or qi) to overload, granting a temporary, massive boost in power at the cost of severe physical strain.


Notes:


• Natural – A young succubus who remains unthreatened in the current timeline.

• Toujou – Toujou is the family name of Basara and his father, Jin, representing their formidable strength and combat potential as members of the Hero Clan. The name also refers to their family residence, which is tied to an ongoing conflict. Basara, a powerful individual known to Aki, carries the weight and legacy associated with this name.

• Jin – A handsome, middle-aged Hero Clan genius with half-rimmed glasses, Basara’s father is a God-tier entity and former God of War. Possessing Demon King-class strength and a pure Ancient Dragon bloodline that sources his son’s power, he masks his might behind a composed exterior while navigating complex Underworld allegiances tied to Mio and the heroines’ families before traveling abroad.

• Wilbert – The deceased former Demon King with a younger sister named Sephie, a lover named Shela, and a daughter named Maria. He held immense power—sought by Zolgear—that sources Mio’s fire abilities and which he used to seal her true powers. Linked to the previous Gremory head and acting as a mysterious Naruse orphanage benefactor, he chose kind, anonymous adoptive parents to raise Mio in the Human World.

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

• Raphaelene – A sealed female war god of god-tier beauty, this main deity was commanded by Heaven to suppress Jin and Sephie. Punished for trying to defy her natural instincts, she was forced into surrogate motherhood. Possessing a same-sex orientation, she is a candidate for Aki’s attention, and her rescue serves as the core motivation behind Basara’s training.

• Chisato Hasegawa – Hasegawa Chisato is the new Kuoh Academy school nurse, secretly the goddess Freya of the Ten Core Gods living under a power seal. Possessing a mature, elegant appearance and magnificent figure, she wears a green knit dress, black miniskirt, and red semi-rimless glasses. She acts as a mentor to Aki while learning to navigate intimacy and maintaining her cover as a human school doctor.

• Hasegawa – Hasegawa Chisato is the new school nurse at Kuoh Academy. She is secretly the goddess Freya, one of the Ten Core Gods, currently living among humans under a power seal. Known for her dignity and magnificent figure, she is often seen in a green knit dress, black miniskirt, and red semi-rimless glasses. She maintains her human cover while serving as the school’s nurse and doctor.

• Chisato – Chisato Hasegawa, a busty, black-haired school doctor at Kuoh Academy, wears a green knit dress, black miniskirt, and red glasses. Secretly the goddess Freya (Afreya), a God-tier individual of the Ten Core Gods with God-faction bloodline, she hides under a power seal. She is Raphaelene’s lover, monitors candidates, and shares a soul contract with Aki, who questions his memories upon her arrival.

• Basara Toujou – Basara Toujou is a pragmatic student and quarter-demon swordsman wielding Brynhildr. Jin’s son, Aki’s brother-in-law, and a candidate for Chisato Hasegawa to rely upon (though less promising than Aki), he was destined to protect Chisato. Alienated by the Hero Clan, he fights for his cousins and the Gremory household, balancing family conflict and mastering his Banishing Shift.

• Basara – Basara Toujou is a pragmatic student and quarter-demon swordsman wielding Brynhildr. Jin’s son, Aki’s brother-in-law, and a candidate for Chisato Hasegawa to rely upon (though less promising than Aki), he was destined to protect Chisato. Alienated by the Hero Clan, he fights for his cousins and the Gremory household, balancing family conflict and mastering his Banishing Shift.

• Aki – A tall, handsome transmigrator and King-status devil with a powerful presence and sealed strength. This assertive strategist pursues God-tier power, transitioning to the Immortal Path via the Red Dragon Emperor gauntlet. Residing in a spacious mansion with his supernatural peerage, he dominantly manages a growing harem through dual cultivation, including a fast-paced romance with Hana.

• Afreya – Goddess Chisato is a main deity embodying love, beauty, and desire, transcending the Ten Core Gods. Outwardly a woman who has surrendered herself to Aki, she currently lives under a sealed fate. Despite being apart from the celestial hierarchy, her divine presence and relationships profoundly define the essence of affection and attraction in the world.

• Rias – A beautiful, crimson-haired High-Class Devil who reached her status at seventeen via powerful Mana, she commands the Gremory household and Occult Research Club. Famous for her signature bust and sharp mind, she protects her peerage (Xenovia, Mio, Maria). Living in a large mansion with Aki and other female companions, she is an acquaintance privy to his transmigration, serves as a key advisor guiding his cultivation, and engages in Dual Cultivation with him.

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


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Edited by Kanaa-senpai.
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