Crossover-Isekai 369

Chapter 369 Heart Demon


Edited by: Kanaa-senpai


 Chisato Hasegawa thought carefully. After signing the Soul Contract, she could perceive the strength of Aki’s soul.


 Normally, a soul as powerful as Aki’s should have already broken through the key barrier. He should be able to nourish it with Mana, go through metamorphosis, and then merge it with his body to reach God-tier.


 The reality, however, was that not only had he failed to breach, but his overly powerful soul made it even more difficult to do so.


 She had never understood why, but after listening to Amano Yuuma (Raynare)’s hypothesis, she finally understood where the problem lay.


 Regarding Aki’s three secrets—Transmigration, Talent Copy Talent, and the Bitter Parent Template1—all the girls who had signed the Soul Contract knew about them, with the only difference being how much they each knew.


 Now, however, everyone was completely clear on the matter.


 Chisato Hasegawa explained the underlying reasons in detail. It was quite complex, but to summarize it in a single sentence…


 Once the issue of the Bitter Parent Template was resolved, Aki would be able to successfully complete the qualitative change of his soul.


 Aki fell silent for a moment, soon understanding and accepting the fact.


 It coincided exactly with his earlier premonition that he could completely shake off the influence of the Bitter Parent Template once he breached God-tier.


 It was just that the causal relationship needed to be reversed.


 It wasn’t that the Bitter Parent Template would disappear after he breached God-tier; rather, he had to resolve the influence of the Bitter Parent Template first to reach God-tier.


 Of course, if Aki didn’t mind, he could also grind it out slowly.


 In reality, the process of nurturing and tempering with Mana was also a process of removing the bad parts. Once the negative aspects of the Bitter Parent Template were all ground away, he would also be able to breach successfully.


 With this, everything formed a closed loop. No matter which method was used, it ultimately returned to how to refine the soul.


 ”Um… Master Aki, I have an idea too.”


 The golden-haired Little Nun’s soft, sweet voice rang out, her adorable, fair-as-snow face looking somewhat nervous.


 Even though they were already on such intimate terms, Asia still felt a bit restless when there were many people around.


 ”Asia, don’t be nervous.”


 Aki soothed her gently: “If you have an idea, just say it. It doesn’t matter if you’re wrong.”


 ”Okay…”


 Asia hugged her hands to her chest, eased her emotions, and said slowly: “Back in the church, when the priest guided the believers, he would often say that whether they are good or bad, they are still your own thoughts. You have to look directly at those bad thoughts and overcome them to solve the problem completely.”


 ”I feel that even if it is a negative influence, it is still a part of Master Aki’s soul. If you want to solve it, you should face it first, and then overcome it…”


 Seeing the surprised looks on the girls’ faces, the golden-haired Little Nun’s delicate body trembled slightly, and she said self-consciously: “This is just my own thought, everyone doesn’t have to…”


 ”Asia, thank you.”


 Aki smiled and interrupted her, kissing her on her elastic, smooth, tender cheek.


 Working together really made things easier. Amano Yuuma (Raynare) deducing the root cause was already a surprise; who would have thought that the mascot always in charge of being cute, the little blonde nun, would directly point out how to go about it.


 After being praised, Asia hadn’t reacted yet. Feeling the breath Aki left on her cheek, a happy smile slowly blossomed on her little face.


 ”As long as I can help Master Aki.”


 …

 …


 After brainstorming, Aki understood how to proceed.


 As his strength grew day by day, he had long had various guesses about his Dual Cultivation Talent and the Bitter Parent Template.


 Now that he had reached the threshold of God-tier, he had finally confirmed them.


 He had to, because as long as he wanted to continue increasing his strength, he had to understand the reason.


 Whether it was the Dual Cultivation panel or the Bitter Parent Template, both were abilities inherent to Aki’s soul.


 Long ago, Aki had discovered that the panel would change according to his thoughts. It wasn’t much, but it was real.


 But if he were asked to find the principle behind this ability, he truly couldn’t.


 Talent abilities were generally like this, such as Rias’s Power of Destruction, Shinra Tsubaki’s Mirror Reflection Talent.


 They could use them and knew they were their own innate abilities, but if someone asked them to explain the reason…


 Sorry, I’m afraid I cannot do that.


 The Bitter Parent Template was the same. His soul would emit a special attraction to the opposite s*x.


 As for inciting hostility from the same s*x, even without the Bitter Parent Template, being surrounded by outstanding members of the opposite s*x would still trigger envy, jealousy, and hatred.


 While attracting the opposite s*x, this Talent ability also amplified the hostility of the same s*x, while simultaneously suppressing his growth.


 If it weren’t for Aki using his Dual Cultivation panel to rapidly increase his strength after transmigration, suppressing the flaws of this Talent, the original body would have either collapsed and committed suicide or been harmed by the upper-level Yellow-haired Punk one day.


 Like the Dual Cultivation panel Talent ability, Aki knew of this flaw, but if he were asked to find the reason, he couldn’t do that either.


 Completing this flaw, or rather, eliminating it, was the key to Aki completing his second qualitative life change.


 The method was still the tempering of the heart in the mortal world2, but it wasn’t about gaining insight into life, but gaining insight into himself.


 Just as Asia said, whether good or bad, they were all his own.


 This negative influence was like a Heart demon. Only by overcoming the Heart demon caused by the Bitter Parent Template could Aki have a clear heart and complete his transformation.


 Only by overcoming the Heart demon, destroying it, and then absorbing it could his soul be fulfilled.


 As for how to go about it, Asia had already said it.


 Step one, look directly at the Heart demon.


 Ever since he became powerful, Aki had been suppressing the Bitter Parent Template, to the point where it was now almost completely suppressed, giving it not even a glimmer of opportunity to make trouble.


 In order to truly look directly at it, Aki learned the same self-sealing spell from Chisato Hasegawa.


 Because he had obtained Chisato Hasegawa’s God-faction bloodline Talent, he learned it very quickly.


 When Aki completed the self-sealing, the suppressed Bitter Parent Template immediately became restless.


 Aki could undo the seal at any time, but unless it was absolutely necessary, it was best not to do so.

 Giving up halfway would likely mean all his previous efforts would go to waste.


 The next time he wanted to use the same method, the difficulty would only increase.


 Aki’s physical fitness and spiritual perception were still there; he could clearly perceive the changes within his soul.


 Even though he was still in the big mansion, surrounded by girls who all had relationships with him, he seemed to feel waves of malice attacking from all directions.


 This was the Heart demon.


 Aki took a deep breath. His physical fitness was still there, and the Dual Cultivation Ability was a passive effect, so he didn’t have to worry about ending up with a green hat3 while tempering his heart in the mortal world.


 Thinking of this, the haze in his heart dissipated by half instantly.


 Actually, compared to being targeted by the Yellow-haired Punk, he was more worried about being cheated on.


 Step two, overcome the Heart demon.


 Aki recalled the few works of Bitter Parent counter-attacks in his mind, trying to find a method.


 But after thinking it over, he discovered that since his transmigration and his change in personality, he had already done everything a Bitter Parent counter-attack required, yet he still hadn’t been able to overcome this negative effect.


 ”Take it slow. Tempering the heart in the mortal world, tempering the heart in the mortal world—there is no such thing as an overnight success.”


 Aki let out a long breath and decided to live like this for a period of time to see how this soul Talent functioned.


 Once he completely understood the ‘enemy,’ then he wouldn’t be far from overcoming it.


 Returning to being a ‘normal’ person still had an effect on Aki. The most obvious change was that every time he went to school, the ordinary girls at Kuoh Academy would almost go into heat upon seeing him.


 Only those with decent strength or a consistently strong spirit could resist this attraction that came from the soul.


 Rias and the others, in order not to affect Aki’s plan, also took the initiative to keep their distance at school.


 If he were surrounded by powerful women every day, neither the attracted girls nor the Yellow-haired Punk with their inner evil amplified would dare to come and look for trouble with Aki.


 Even so, the legend Aki left at Kuoh Academy still made the Yellow-haired Punks shrink back.


 On the contrary, the girls, upon discovering an opportunity, all became active.


 In just one week, Aki felt as if he had returned to the time just after he transmigrated.


 Every few days he received a love letter, and almost every day after school he had to head to the academy’s confession holy ground, the now-bare cherry blossom tree, to keep an appointment.


 I don’t know if the ordinary people’s will was too weak, or if it was just that there were many Yellow-haired Punks in this world; a week later, people started looking for trouble with Aki again.


 But the current Aki wasn’t the weakling he used to be. Not to mention that his physical fitness was still maintained at S-Rank (the result of Martial Way training).


 Even if his physical fitness were the same, he could take on more than a dozen people with Hakuda alone.


 If he were to fight ruthlessly, taking on twenty or thirty wouldn’t be a problem.


 —


 Summary:

 Aki and his companions analyze the core impediment to his advancement, identifying the Bitter Parent Template as the primary obstacle to his qualitative soul evolution. Aki opts to self-seal his abilities and undergo a period of “tempering his heart” to confront the internalized “Heart demon.” The chapter concludes with Aki returning to his daily life, where his diminished ability to suppress his allure leads to renewed attention from girls and challenges from delinquents at Kuoh Academy.


 —


 Trivia:

 Aki’s current physical prowess is maintained at an S-Rank level thanks to his previous training in the Martial Way.

 The Dual Cultivation Ability functions as a passive effect that continues to operate even while Aki is attempting to temper his heart.

 Chisato’s self-sealing spell, which Aki adapted, is the key mechanism for his current attempt to force a confrontation with his internal conflict.

 Raynare’s initial deduction served as the catalyst for the group to realize the reverse-causal relationship between the Bitter Parent Template and the God-tier breach.


 —


 Translation Notes:

1 A trope/system feature characterizing the protagonist as someone destined to suffer while those around them benefit.

2 A cultivation-style concept involving exposure to worldly experiences to achieve psychological and spiritual maturity.

3 A Chinese idiomatic expression referencing the color green to signify being cheated on or cuckolded.


Notes:


• 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.

• 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.

• Amano Yuuma – Yuuma Amano is the alias of Raynare, a Fallen Angel disguised as a school uniform-wearing student with an innocent face, slender figure, long black hair, and black wings. Serving in Rias’s Peerage, the ORC, and a barrier maintenance team, she assists with grooming at the villa. Possessive and assertive, she proactively trains her partner Aki, with whom she desires intimacy.

• Raynare – Lady Raynare, an identity associated with Amano Yuuma, is a voluptuous, dark-haired former Fallen Angel shifting between a schoolgirl guise and her true nature. Training under Rias in the Occult Research Club, she struggles to integrate into the peerage. Contracted to her mentee Aki, her high aptitude boosts combat to S-Rank, while providing critical insights regarding soul mechanics.

• Amano – Raynare Yuuma, a fallen angel masquerading as a Kuoh schoolgirl, is a striking woman with long hair and a commanding presence. Secretly a Devil bound by a Soul Contract to Aki, this former Occult Research Club member possesses black-belly powers and instant-change abilities. She conceals her true faction and fears, remaining a disciplined, protective figure deeply concerned for Aki’s well-being.

• Yuuma – Amano Yuuma (Raynare) is a striking, large-busted schoolgirl with long black hair and violet eyes. Formerly a fallen angel, she is now a high-class devil, light magic master, and devoted Pawn in Aki’s peerage via a soul contract. Bound by an obsessive, absolute allegiance to Aki, she playfully teases him while hypothesizing that his soul, though incredibly strong, is pure and pitifully lacking.

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

• Asia – A voluptuous, golden-haired former nun and S-Rank Gremory Bishop, this reincarnated, kind-hearted Devil acts as a naive yet diligent healer and mascot in the Occult Research Club. Her pure presence and intuitive wisdom comfort others during internal conflicts. Under Aki’s tutelage, her deep affection for him fuels an anxiety about being good enough within the club’s competitive dynamics.

• 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 Sitri’s stoic, glasses-wearing Queen and Student Council VP, is a black-winged Devil who assists in the battle’s aftermath. As Sousuke’s loyal wife and Sakura’s mother, she balances maternal devotion with a playful, jealous side. A key link to Aki with a shared dual cultivation history, she monitors Rating Games, masking vulnerability behind fierce loyalty.

• Shinra – Shinra Tsubaki is a refined, dark-blue haired middle-class reincarnated devil and A-rank warrior. As Student Council Vice President and Queen, she faithfully assists her childhood friend Sona Sitri with administrative duties. Gifted with Mirror Reflection talent, her mana surged after meeting Aki, transforming her into a loyal ally who also manages and displays crucial combat feeds.

• 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.

• Hakuda – A student who attempted a ‘second-stage’ transformation during a fight with Aki. He is described as somewhat of a moron and is currently being interrogated for spreading rumors. A student with high-level networking and hacking skills. He is described as having a ‘pained’ or ‘bitter’ expression and admits to using supernatural powers for illicit activities.


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Edited by Kanaa-senpai.
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