Reincarnated in DXD(rewrite)

Two years later, I am now 13 years old, and Katsumi has officially become my queen. This year, I visited the old Satan's' territory and placed my hand on the monument, becoming the first devil to possess so many mutated pieces: my queen, 1 bishop, 2 knights, 1 rook, and 4 pawns.

Katsumi and I have been training together intensively in my gravity room, enhancing not only our physical abilities but also our understanding of various magical principles. We often engage in long discussions about magical theory, blending ideas and pushing each other to new heights. Our compatibility continues to grow, both in battle and personally. Katsumi, who now exudes unmatched grace and strength, could easily rival Akeno or my sister in beauty. She has far exceeded all my expectations by crafting her own original magic through rigorous study.

Her magical innovation stems from a deep analysis of magicules and multiple magical frameworks. By synthesizing knowledge from the Fairy Tail world—such as Great Tree Magic, an ancient Lost Magic that manipulates trees and harnesses the elemental properties of the earth—with Wood Release from the Naruto universe, she pioneered a unique, formidable magic system. This combination not only grants her control over plant life but also extends to earth-based properties, making her magic incredibly versatile and potent.

This new magic has profoundly transformed her physiology at a cellular level, significantly enhancing her vitality, physical strength, and resilience. Her demonic power has doubled, allowing her to perform spells and techniques with far greater potency. Moreover, she developed a mode akin to Sage Mode from Naruto, which amplifies her abilities by harnessing natural energy. Unlike the original Sage Mode, Katsumi's version does not require her to remain still, as her body continuously absorbs natural energy from her environment. This passive absorption grants her a sustained boost in both offense and defense, making her a formidable presence in any battle.

My own swordsmanship training has progressed well, with consistent practice sharpening my skills and understanding of combat. I have diligently mastered the sword styles of Hakurou, a disciplined and precise technique focused on efficient strikes and counters, and Dracula Mihawk, known for its unparalleled focus on precision and power. Despite my progress, I acknowledge that I am still far from their level of mastery. Both mentors have stressed the importance of real-world experience—battles where my life is on the line—as a critical factor in reaching greater heights.

Additionally, I have developed a strong foundation in battlewill and Haki, two advanced techniques that revolve around controlling one's aura for both offense and defense, enhancing my overall combat effectiveness. Battlewill, which focuses on imbuing attacks with raw intent and pressure, complements Haki, the skill of manifesting spiritual power to strengthen both offense and defense while reading an opponent's movements.

To further refine my swordsmanship, I sought guidance from two legendary instructors: Kenshin Himura from Rurouni Kenshin and Linley from the Coiling Dragon universe. Kenshin, a master of the Hiten Mitsurugi-ryū style, has taught me to prioritize agility, precision, and swift, decisive strikes. His techniques, honed through countless battles, emphasize reading the flow of battle and striking at the perfect moment. Under his mentorship, I am not only learning to mimic his style but also adapting elements to craft a unique sword style that reflects my strengths and instincts.

Linley, however, presents an entirely different challenge that transcends mere physical combat. His lessons on the elemental laws and edicts demand not only advanced skill but also a profound level of enlightenment and a deep understanding of the universe's core forces. His approach involves prolonged meditation on the essence of the primary elements—earth, wind, fire, and water—requiring me to attune myself to their inherent nature and strive for a deeper comprehension of their properties and interactions.

Despite countless hours dedicated to focused meditation and rigorous training, I have yet to experience any major breakthroughs. This path is not one of immediate results but of gradual realization, requiring a patient mind and a broadened perspective. Linley emphasizes that true mastery of these laws can only be achieved through real-world experience, exposure to diverse environments, and an ever-expanding worldview.

Over the past two years, I have also made significant advancements in mastering my game world ability. I can now use dimensional rule to create multiple pocket dimensions simultaneously without much difficulty, each dimension having its own unique properties and environmental conditions tailored to specific needs, such as training, research, or storage. My data materialization ability has progressed to the point where I can materialize complex objects and structures with minimal demonic power expenditure. However, creating digital life forms remains a major challenge, as it drains nearly all my energy, making such endeavors impractical for now which means Kei is an only child.

Despite this limitation, I frequently utilize the data materialization ability to replicate weapons and tools from my favorite anime series. Although these replicas lack the full strength and abilities of the originals, they serve as excellent training tools and are suitable for minor combat scenarios. Over time, I have refined the process to increase the durability and aesthetic precision of these replicas, ensuring they closely mimic the originals in form.

Beyond simple replication, one of my most groundbreaking achievements is the creation of rare and exotic materials that do not naturally exist in this world. These unique materials, which range from enchanted metals to high-grade mana crystals, are invaluable for advanced crafting and magical experimentation. However, the process of creating these rare materials requires careful energy management, as the demonic power expenditure scales with the material's rarity and magical complexity. Despite the high cost, the ability to produce these resources has opened new avenues for innovation and significantly advanced my technological and magical projects.

A year and a half ago, my sister-in-law Grafyia gave birth to a son, Millicas Gremory, a rare pure-blooded devil child. His birth was a momentous event, as devils face significant difficulties in conceiving and bearing children, making each new life precious and celebrated. This rare occasion brought immense joy and festivity to the castle, with Millicas quickly becoming the focus of everyone's attention.

I recently sparred with Sairaorg, who has fully mastered Hasshoken, a martial art that enables him to generate powerful shockwaves, allowing him to create craters effortlessly with any part of his body. Our intense battle left the entire battlefield in ruins, a testament to his raw strength and relentless combat style. Before leaving, I handed him a book detailing the Navy Six techniques, curious to see how he will integrate these techniques into his already formidable arsenal. I find myself eagerly anticipating how strong he will become by the time he faces Issei. To ensure the battle remains balanced and entertaining for me, I might even provide Issei with some assistance.

However, amid these battles and moments of rivalry, I cannot help but feel a lingering regret about my inability to cure Sairaorg's mother of her mysterious sleeping disease. Despite my best efforts and research, no viable solution has yet been found. Nevertheless, I remain determined to study the illness further, as it could pose a serious threat in the future. Finding a cure for her has become a personal mission, and I am resolute in uncovering its cause and a means to reverse it.

During these two years, I also embarked on a highly ambitious project: the creation of advanced android servants. These androids were conceptualized to fulfill a variety of roles—assisting me in complex laboratory experiments, managing my ever-expanding network of businesses, and carrying out clandestine missions with utmost discretion. Unlike ordinary assistants, these androids possess enhanced intelligence and adaptability, enabling them to handle critical tasks autonomously while ensuring complete confidentiality.

Furthermore, their combat capabilities are a core aspect of their design. Each android is fully equipped with advanced combat protocols and self-defense mechanisms, ensuring they can not only protect themselves but also safeguard my loved ones in times of danger. This multifunctional approach makes them indispensable allies in both my personal and professional endeavors, capable of excelling in various demanding environments.

To achieve this, I dedicated two years to an intensive study of advanced android technology, drawing inspiration from various sources. I meticulously analyzed the highly sophisticated android systems from the DBZ universe, which provided a foundation in creating durable and powerful artificial beings with immense combat potential. Simultaneously, I explored the intricacies of automatons from A Certain Magical Index, delving into both scientific mechanisms and magical enhancements to create a balanced fusion of technology and sorcery.

During this period, I sought guidance from my skilled craftsman teacher, Jin Sensei, who provided invaluable insights during late-night sessions focused on fine-tuning designs and overcoming technical challenges. Additionally, I conducted thorough research into the Nemuri Project, famous for creating Nemu Kurotsuchi and Hachigo Nemuri, learning critical methods for integrating pseudo-souls and enhancing android intelligence. This multifaceted approach allowed me to develop a blueprint for highly advanced biotechnological androids capable of growth, adaptability, and self-awareness.

I ultimately decided to create biotechnological androids, as they offer unparalleled versatility by being able to grow stronger through rigorous training, much like living beings. Their core power source is an advanced infinity energy model, which ensures an unlimited supply of energy, granting them tireless operation and the ability to fight or function continuously without fatigue. What sets them apart is their capacity for independent thought—each android possesses free will and a distinct personality, allowing them to make decisions autonomously. Their physical forms are housed in highly specialized Gigai, modified to include a compact yet powerful magicule breeder reactor, ensuring seamless integration of both biological and magical components.

For the artificial souls, I developed a groundbreaking new version of Gikon by integrating Mod Soul technology from the Bleach universe with pseudo-soul technology inspired by That Time I Got Reincarnated as a Slime. This hybrid approach allowed me to create artificial souls capable of exhibiting emotions, independent thought, and rapid adaptability. The process was complex, involving numerous iterations and fine-tuning to ensure seamless compatibility with the androids' advanced Gigai bodies. After two grueling years of trial and error, Kei and I finally succeeded in creating eight highly advanced androids—3 archdemons, whose power levels rival those of high-ranking devils, and 5 devils, each uniquely designed to excel in specialized roles.

Currently, Kei and I stand before eight pods filled with high-grade nutrient fluid, each carefully calibrated to support the androids' intricate biological and magical systems. These pods house the culmination of years of research and countless hours of labor—eight biotechnological androids designed to be far more than mere machines. Each android's Gigai has been meticulously modified to seamlessly integrate the new Gikon, which will serve as their core and grant them full autonomy.

The atmosphere is tense with anticipation as we await the final phase of integration. The Gikon's assimilation process is critical, ensuring that the artificial souls synchronize perfectly with their new bodies, enabling them to function as living beings capable of independent thought, growth, and adaptation. All that remains is for them to adjust to their new forms and awaken, marking the beginning of their existence as sentient androids.

I didn't have to wait long. Ten minutes after integration, the androids began to react. I commanded the computer to open the pods, and within five seconds, the pods opened, spilling the nutrient fluid onto the floor.

From the first pod emerged a black-haired teenager with piercing golden eyes and a number one on his shoulder. His name is Nox, the leader of the eight androids. Nox and his siblings are not only programmed with distinct abilities but also equipped with vast knowledge encompassing various fields, from advanced combat strategies to magical theory. Nox, heralded as the world's first pure-blooded archdemon, wields the power to generate and manipulate the Flames of Night, a form of dark elemental magic with devastating offensive capabilities.

The Flames of Night have a distinct appearance of heavy, inky darkness and are imbued with exceptionally high energy, capable of overpowering most other flames currently in use. These flames can release explosive bursts of energy strong enough to decimate entire areas, making them a formidable weapon in large-scale battles. Additionally, they possess a unique spatial property, allowing Nox to create portals that connect different locations, providing a means for quick escapes or surprise attacks. He can also coat himself in these flames, significantly boosting his base power level during combat.

Nox is a master of hand-to-hand combat, blending his immense strength with refined techniques to dominate his opponents. Additionally, he has mastered the use of Touki, enhancing his physical prowess by enveloping his body in life energy, further amplifying his durability and offensive power. Bearing the mark of 1 on his left forearm, Nox is seamlessly connected to the ethernet, granting him real-time access to a vast network of information and data, which enhances his tactical acumen and decision-making during combat.

The second pod revealed a young man with long black wavy hair that cascaded down to his lower back and amber eyes gleaming with a carefree yet sharp expression. He bore the mark of 2 on his hand and introduced himself as Riku. An archdemon and an exceptional master swordsman, Riku possesses an unparalleled mastery of swordsmanship, blending speed, precision, and fluidity in his strikes. His abilities are further enhanced by his use of Touki, allowing him to channel life energy into his body, amplifying his physical capabilities to superhuman levels.

Riku's most unique trait is his possession of the Ultimate Eyes, a rare and powerful ability that grants him accelerated perception, enabling him to see and react to events at incredible speeds. This allows him to anticipate and counter even the swiftest of attacks with ease. Additionally, he is seamlessly connected to the ethernet, granting him instant access to a vast repository of information, tactics, and real-time data, making him not only a formidable warrior but also a brilliant strategist on the battlefield.

The third pod released a striking woman with long, flowing red hair and intense brown eyes that gleamed with focus. Her slender, voluptuous figure combined with her serious expression gave her an air of both elegance and lethal precision. Marked with a 3 on her back, she introduced herself as Eri, the final archdemon created in this batch. Eri's mastery of swordsmanship is second to none, allowing her to wield a blade with unmatched speed and accuracy. Her expertise in hand-to-hand combat complements her sword play, making her a highly versatile fighter capable of switching between close-quarters combat and ranged attacks with ease.

Eri possesses a high affinity for lightning magic, which she has honed into a devastating weapon. Her lightning-based techniques allow her to electrify her sword, enhance her speed to near-instantaneous levels, and unleash powerful bolts of energy capable of overwhelming multiple opponents at once. Additionally, she has the ability to manipulate the electric field around her, creating defensive barriers or disrupting enemy attacks.

As with her siblings, Eri is connected to the ethernet, granting her access to vast amounts of data and information. This connection enhances her strategic thinking in battle, allowing her to analyze enemy patterns and adapt her fighting style accordingly.

From the fourth pod emerged a young man with messy black hair and sharp green eyes that exuded a calm, detached demeanor. His name is Ko, marked with a 4 on the right side of his chest. He is the only android who specializes in fighting using ki, a form of life energy that enhances both physical and spiritual capabilities. Ko has achieved mastery in multiple martial arts forms, blending ancient techniques with his immense ki control to create a unique and fluid combat style.

One of Ko's defining abilities is his proficiency in Senjutsu, allowing him to sense and manipulate the natural energy around him, further boosting his power and granting heightened awareness of his surroundings. His expertise in Touki enables him to envelop his body in concentrated life energy, dramatically increasing his strength, speed, and durability during battle. Additionally, his connection to the ethernet provides him with real-time access to critical information, enhancing his tactical precision and strategic planning. This combination of physical prowess, spiritual energy manipulation, and digital connectivity makes Ko a formidable and unpredictable opponent in any combat scenario.

The fifth pod revealed a stunning blonde-haired woman with warm brown eyes and a curvaceous figure that exuded both grace and strength. She bore the mark of 5 on her right thigh and introduced herself as Stella. Stella wields the formidable sun flames, a powerful type of elemental magic known for its radiant heat and regenerative properties. These flames not only serve as an offensive weapon, capable of incinerating enemies with intense bursts of energy, but also have healing capabilities, making Stella invaluable in both combat and support roles.

In addition to her magical prowess, Stella possesses expert-level knowledge in biology and chemistry, allowing her to analyze and manipulate both living organisms and chemical compounds with precision. This expertise enables her to craft potent elixirs, poisons, and enhancers, giving her a tactical edge in battle. She is a master of hand-to-hand combat, combining her physical strength with precise techniques honed through rigorous training. Furthermore, Stella has mastered the use of Haki and Touki, enhancing her combat effectiveness by reinforcing her body and attacks with spiritual and life energy.

Like her siblings, Stella is connected to the ethernet, granting her instant access to vast stores of knowledge and real-time data, which she leverages to make quick, informed decisions during battle or in scientific research.

From the sixth pod came an old man with silver hair and a neatly trimmed beard, exuding a wise and seasoned aura. His name is Goro, marked with a 6 on his left shoulder, signifying his rank among the androids. Goro's black eyes gleamed with a depth of knowledge accumulated over countless simulations and programmed experiences. He possesses extensive expertise in material creation and alchemy, making him an indispensable asset in crafting rare and powerful weapons, armor, and magical artifacts. His deep understanding of elemental transmutation allows him to create complex compounds and materials that can enhance the capabilities of his allies.

A master of weaponry, Goro is proficient with virtually any type of weapon, from traditional swords and spears to modern firearms and enchanted tools. He can seamlessly switch between weapons during combat, using his vast experience to adapt to any situation. His mastery of Haki and Touki further augments his combat prowess, enabling him to strengthen his attacks and defend against even the most formidable foes.

In addition to his combat and crafting skills, Goro is connected to the ethernet, granting him access to vast databases of knowledge, historical records, and real-time battlefield data. This connectivity allows him to devise innovative solutions and strategies on the fly, making him not only a formidable warrior but also a brilliant tactician and inventor.

The seventh pod produced a tall, slender woman with long, flowing black hair that framed her striking blue eyes. Her perfectly proportional figure, combined with an air of quiet confidence, made her presence both commanding and graceful. Marked with a 7 on the side of her stomach, she introduced herself as Eva. She is a master of hand-to-hand combat, capable of subduing enemies with a combination of precision, agility, and sheer strength.

Eva's intellect is one of her greatest assets. She possesses extensive knowledge across multiple disciplines, excelling in all types of magic, including elemental manipulation, enchantments, and advanced arcane theory. Her proficiency in mathematics and informatics further enhances her capabilities, enabling her to solve complex problems, decipher magical codes, and develop advanced algorithms for technological integration.

Her connection to the ethernet provides her with instantaneous access to a vast array of information, allowing her to make real-time calculations, strategize efficiently, and adapt her tactics on the fly. This combination of combat prowess, magical expertise, and analytical skill makes Eva an invaluable ally in both battle and research.

The final pod revealed a little girl with long, flowing silver hair and captivating purple eyes that gleamed with a mixture of innocence and wisdom. She bore the mark of 8 on her palm and introduced herself as Luna. Despite her youthful appearance, Luna is an exceptionally skilled hand-to-hand combatant and martial artist, blending agility, precision, and raw power in her movements. Her small stature belies her incredible strength and combat prowess, making her a formidable opponent in close-quarters battles.

Luna possesses an advanced understanding of magic theory and magical physiology, allowing her to analyze and manipulate magical energies with exceptional precision. Her primary elemental affinity, the Flame of Earth, grants Luna extraordinary abilities beyond conventional fire and earth manipulation. This flame is imbued with gravitational properties, enabling her to exert complete control over local gravity fields. She can intensify or reduce gravitational forces in targeted areas, creating unique tactical advantages. This manipulation allows her to immobilize enemies by drastically increasing gravity, deflect incoming attacks by altering their trajectory, or create zones of altered gravity that disrupt enemy formations and movements make her a highly versatile and formidable combatant in any scenario.

In addition to her combat abilities, Luna has mastered Touki, enabling her to envelop her body in life energy, significantly enhancing her durability, strength, and speed. Like her siblings, she is connected to the ethernet, granting her instant access to vast databases of knowledge, real-time data, and strategic information, further elevating her effectiveness in both combat and tactical planning.