第 1 章
From Corporate Worker to Slime: A Fantastical Journey Begins
Imagine waking up one day to discover you've been transformed into a gelatinous blob with supernatural abilities. This is the bizarre reality facing Satoru Mikami in "That Time I Got Reincarnated as a Slime," the breakout light novel series by Fuse that has captivated millions worldwide. Since its 2014 debut, this isekai phenomenon has spawned a multimedia empire including manga, anime, and video games, consistently ranking among Japan's top-selling light novel series. What makes this particular reincarnation tale stand out in the crowded isekai genre is its unique protagonist-not a powerful human hero, but a humble slime monster who builds a nation through diplomacy and kindness rather than sheer force. The series has garnered praise from fantasy luminaries like Brandon Sanderson, who cited it as an influence on his own world-building techniques. Even Hollywood has taken notice, with rumors of adaptation rights being quietly shopped around major studios. At its core, this is a story about finding purpose and connection in the most unexpected circumstances-a theme that resonates deeply with readers seeking escapism with substance.
第 2 章
Death and Rebirth: The Unlikely Hero's Origin
Satoru Mikami's life epitomized the Japanese salaryman archetype - a 37-year-old bachelor who lived alone, worked diligently at a general contractor company, and found contentment in his routine existence. His days followed a predictable pattern: morning commute, office work, occasional drinks with colleagues, and quiet evenings at home browsing the internet. Despite his competence at work and stable position, he harbored no grand ambitions or dreams of adventure.
This ordinary existence shattered during what began as a typical morning commute. Walking along his usual route, he encountered his subordinate Tamura and the office's renowned beauty Sawatari celebrating their recent engagement. The peaceful scene transformed into chaos when a knife-wielding assailant, fleeing from an earlier crime, charged down the crowded sidewalk. Without hesitation - acting on pure instinct rather than conscious heroism - Satoru pushed Tamura out of harm's way, taking the fatal blow himself. As his life ebbed away on the cold pavement, strange system-like confirmations echoed in his consciousness, granting him peculiar abilities: "Resist Heat," "Resist Piercing Weapon," and "Cancel Pain." In his final moments, concerned about his digital privacy even at death's door, he made an unusual request to Tamura to destroy his computer hard drive - unknowingly triggering the acquisition of the unique skill "Predator." His last self-deprecating thoughts about dying as a virgin mysteriously manifested as another powerful ability: "Great Sage."
Death marked not his end but his transformation. Satoru regained consciousness in an unfamiliar form - a slime monster, a being typically considered among the weakest creatures in fantasy realms. His new body, translucent and gelatinous, possessed remarkable adaptability. Through careful experimentation over three months, he discovered his ability to flow through cracks, absorb nutrients directly through his membrane, and even maintain perfect vision despite lacking traditional eyes. His unique skills proved extraordinarily powerful: "Predator" enabled him to analyze, absorb, and replicate the properties of anything he consumed, while "Great Sage" functioned as an advanced artificial intelligence, providing detailed analysis and answers to his queries.
The defining moment of his new existence arrived during an underwater exploration. While testing his newly developed "Water Pressure Propulsion" technique - a skill he created by analyzing water currents - he collided with an unexpected obstacle. This collision led to his first conversation in this new world, conducted through telepathy with none other than Veldora the Storm Dragon. Veldora, one of only four True Dragons possessing infinite lifespans, represented the pinnacle of magical power in this realm. This chance encounter with the legendary creature, sealed away for 300 years for destroying a human kingdom, would set Satoru on a path far grander than his former life could have ever suggested - transforming him from a simple slime into a being destined to reshape the very fabric of this fantasy world.
第 3 章
Forging Bonds: The Slime and the Dragon
The meeting between a lowly slime and an ancient dragon could have ended in disaster, but instead, it blossomed into an unlikely friendship. Veldora was initially amused by Satoru's intelligence, explaining that slimes are typically mindless creatures. He suggested that Satoru might be a "unique" monster born from magical energy that had leaked from Veldora himself. The dragon shared knowledge about the world's races-humans, nonhumans like elves and dwarves, hostile races like goblins and orcs, and magic-born beings. He identified Satoru as a "transmigrant" from another world, noting that retaining complete memories across realms was extremely rare.
When Satoru mentioned his inability to see, Veldora offered to teach him about Magic Sense, a skill that allows perception of magical particles. With his Great Sage ability, Satoru quickly mastered this skill, suddenly able to "see" in 360 degrees with incredible clarity. When he finally perceived Veldora's true form-a massive dragon with obsidian-like scales radiating dark purple light, six-fingered claws, and two pairs of sword-like wings-he was terrified. Yet their continued conversation revealed the dragon to be surprisingly kind despite his fearsome appearance.
In a moment of awkward sincerity, Satoru proposed friendship. After some theatrical reluctance, Veldora enthusiastically accepted, suggesting they create a shared name to mark their equal status. When Satoru suggested "Tempest" based on Veldora's nature as a storm dragon, the dragon loved it immediately. Veldora then named Satoru "Rimuru Tempest," carving their shared family name into his soul.
Their budding friendship faced an immediate challenge: Veldora was trapped by an "Unlimited Imprisonment" spell cast by a hero. Using Great Sage's analysis, Rimuru discovered there was a slim chance of escape if Veldora entered a spiritual form within a receptacle. In a bold move, Rimuru used his Predator skill to consume both Veldora and his prison, promising to find a way to free his new friend. This seemingly simple act of kindness would have far-reaching consequences for the entire world.
第 4 章
Power Vacuum: The World Reacts
The disappearance of Veldora, classified as a Special S-ranked monster capable of causing natural disasters, sent shockwaves through the world's political landscape. In the comprehensive monster ranking system created by Yuuki Kagurazaka, threats were categorized from F to A, with S and Special S designations reserved for truly catastrophic beings. Veldora's classification at the highest tier meant he could level entire cities with minimal effort - his mere presence could trigger earthquakes, storms, and other natural calamities that would devastate whole regions.
For over three centuries, Veldora's residence in the Forest of Jura had created an unintentional but crucial buffer zone between competing kingdoms. His presence served as a natural deterrent, preventing aggressive territorial expansion and maintaining a delicate political equilibrium. The forest itself had become nearly mythical - a place where even the bravest adventurers feared to tread, creating an effective neutral territory that helped maintain peace between nations that might otherwise have gone to war.
Twenty days after his disappearance, the Western Holy Church's high priests conducted extensive magical surveys and divination rituals, officially confirming that Veldora's presence had vanished entirely. This announcement triggered immediate diplomatic chaos. In the kingdom of Blumund, Baron Veryard urgently summoned Guild Master Fuze to his private chambers for an emergency strategy session. Their tense conversation, spanning several hours into the night, revealed the far-reaching implications of this power vacuum. The previously impenetrable Forest of Jura - once an insurmountable natural barrier - might now be traversable, potentially allowing the ambitious Eastern Empire to execute its long-held expansionist agenda.
"We may have about three years before the Empire could mobilize a full invasion force," Fuze estimated grimly to his childhood friend, the Baron. "They'll need time to survey the forest, establish supply lines, and build forward operating bases. But make no mistake - they won't waste this opportunity."
Meanwhile, deep within the forest, Rimuru remained completely oblivious to the international crisis his actions had inadvertently sparked. During his 120-day period of isolation in Veldora's cavern, he focused entirely on developing his capabilities as a slime. Through constant practice and experimentation, he mastered several crucial skills including "Water Blade" for offensive capabilities and "Control Water" for environmental manipulation. He also developed various self-defense techniques, learning to utilize his unique physical properties as a slime to absorb and deflect attacks.
Despite these preparations and his growing confidence, Rimuru still faced significant limitations - most notably his inability to speak without vocal cords, forcing him to rely on telepathy for communication. Nevertheless, after four months of training and development, he determined it was time to explore beyond his underground sanctuary. With a mixture of excitement and apprehension, he began his journey up the solitary path leading from the cave, unaware that he was about to emerge into a world already transforming due to his actions.
第 5 章
Tragic Origins: Shizue's Story
While Rimuru was beginning his journey, elsewhere in this world lived another transplant from Japan with a far more tragic story. Shizue Izawa had been just eight years old when she was caught in the devastating firebombing raids of Tokyo during World War II. As flames and chaos engulfed their neighborhood, her mother made the ultimate sacrifice, using her own body as a shield to protect her daughter from the inferno. In those terrifying moments, as death seemed certain, a mysterious voice echoed in young Shizue's mind, offering her an escape - a chance to live. Trapped between the horror of her reality and an unknown fate, she accepted without hesitation.
She awakened in a stone chamber before Leon Cromwell, known throughout the land as the "Platinum Devil" - a human who had ascended to become one of the mighty demon lords. His cold, calculating eyes assessed her burns and injuries with clinical detachment, muttering about her being "another failure" in what appeared to be a series of summonings. Leon turned to leave the badly burned child to her fate, but something in Shizue's desperate cry for help made him pause. A cruel smile crossed his face as he declared she might be "suited for flame after all," and with a gesture, he summoned Ifrit, a greater fire titan of immense power, ordering it to possess her small, fragile body.
The possession was excruciating - a battle for dominance between a child's will and an ancient elemental being. As Ifrit attempted to consume her consciousness, Shizue fought with unexpected resilience, leading to the spontaneous development of her unique skill "Deviant." This remarkable ability allowed her to maintain her sense of self even while being merged with the high-ranked flame elemental. However, the victory was bittersweet; while she retained awareness, Ifrit still controlled her body's actions. She spent countless days in a state of helpless observation, watching through eyes she could no longer control as Leon conducted his mysterious affairs.
Determined to gain some measure of independence, Shizue dedicated herself to swordsmanship, practicing relentlessly during the periods when she could control her body. Her only solace came in the form of an unexpected friendship with a servant girl named Pirino, whose gentle nature provided a stark contrast to the harshness of castle life. Together, they found and began caring for an abandoned wind fox cub they named Pizu, creating a small family of their own within the cold stone walls.
Their brief happiness ended in tragedy when they brought Pizu to the castle's main hall. The young fox, sensing Leon's malevolent nature, attempted to protect its adoptive family. The confrontation triggered Ifrit's protective instincts, and before Shizue could resist, her body became an instrument of destruction. She watched in horror as her own hands, wreathed in supernatural flame, reduced both Pizu and Pirino to ashes. Leon observed the scene with characteristic indifference, showing no reaction to the death of an innocent girl and her beloved pet. From that moment, something fundamental broke within Shizue - she never shed another tear, having lost not just her loved ones, but her capacity for emotional expression.
This heartrending origin story would eventually become deeply entwined with Rimuru's own journey, creating a profound connection between two souls displaced from Japan into this fantasy realm - though their paths to power and purpose could not have been more different.
第 6 章
Building a Community: The Goblin Village
After emerging from the cave, Rimuru encountered a group of goblins who treated him with unexpected reverence. Their village was under threat from direwolves, and after seeing their pitiful settlement, Rimuru learned that these monsters had been attacking goblin villages, causing many deaths including their guardian. The village elder, with tears in his eyes, begged for protection, offering their allegiance in return.
Despite initially questioning what he'd gain from helping them, Rimuru was moved by their desperate situation and agreed to become their guardian. The village had about 100 residents with 60 capable of fighting, but they were severely outmatched by approximately 100 direwolves-monsters so powerful it would take ten goblins to defeat just one wolf.
Rimuru immediately began improving their situation, first by healing their wounded with his recovery potion. The amazed goblins kowtowed before him, mistaking his healing for resurrection. Next, he ordered them to dismantle their homes to build a defensive fence around the village, reinforcing it with spider silk and setting Steel Thread traps. He positioned himself at the single entrance, creating a strategic chokepoint lined with Sticky Thread.
When the direwolves attacked, their alpha charged straight into Rimuru's trap. Caught in the Sticky Thread, he couldn't dodge the Water Blade launched at his head, resulting in instant decapitation. With their leader dead, Rimuru gave the remaining direwolves an ultimatum: submit or die. To his surprise, rather than fleeing, they pledged their allegiance to him.
The next morning, Rimuru decided to pair each goblin with a direwolf, creating an integrated community. Then he made what turned out to be a magically exhausting decision-giving names to everyone. Starting with the elder, whom he named "Rigurd," he worked through the entire village, not realizing that naming monsters actually consumed magical energy and triggered evolution. When he recovered from his magical exhaustion, he discovered all his subjects had physically transformed-the goblins had evolved into intelligent hobgoblins and "goblinas," while the direwolves had become "tempest wolves" with the ability to adjust their size.
With their new intelligence, they'd gathered food and prepared for village improvements while Rimuru recovered. He established three simple rules: no attacking humans, no fighting among friends, and no looking down on other species. He appointed Rigurd as "goblin lord" to govern the village, and they made plans to visit the dwarves for help with building proper houses and acquiring clothing.
第 7 章
Diplomatic Mission: Journey to Dwargon
Rigurd prepared everything for Rimuru's expedition to the Dwarven Kingdom, including selecting team members with Rigur as expedition leader. The group traveled at incredible speed on the black wolves' backs, covering nearly fifty miles per hour without tiring. After three days, they reached the Armed Nation of Dwargon-a magnificent city chiseled into a vast mountain cavern, protected by heavily armed guards and massive gates.
Rimuru decided to enter with just Gobta as his guide while the others waited at the forest entrance. While waiting in the entry line, they were accosted by hostile adventurers. When insulted, Rimuru revealed his true power by transforming into a Tempest Starwolf, then unleashed his Coercion skill-accidentally causing not only the troublemakers but also innocent bystanders to faint. This brought the dwarven security forces running, and Rimuru was promptly arrested along with Gobta.
During interrogation, Rimuru concocted an elaborate backstory about being a beautiful young girl cursed to become a slime. When news arrived of miners injured by an armorsaurus, he offered his recovery potions to help. This good deed earned him the captain's trust, and after being detained overnight, he was introduced to Kaijin, a skilled weaponsmith facing a crisis.
Kaijin had been ordered by a vindictive minister to produce twenty magic swords in an impossible timeframe without proper materials. Rimuru surprised everyone by producing pure magisteel, offering it in exchange for Kaijin's help with his village. When it became clear that even with the materials, Kaijin couldn't meet his deadline, Rimuru proposed a mysterious solution-asking him to make just one perfect sword first. After Kaijin crafted the sword, Rimuru secretly used his Predator skill to analyze it and create nineteen perfect copies in just five minutes.
Their celebration was cut short when Minister Vester deliberately provoked them, leading to Kaijin punching the minister and effectively exiling himself from the kingdom. Kaijin immediately offered to join Rimuru's village, and they were promptly arrested. At their trial before the imposing Heroic King Gazel Dwargo, they were sentenced to exile from the kingdom beginning at midnight-a punishment that worked perfectly for Rimuru's plans.
第 8 章
Confrontation and Connection: Rimuru Meets Shizue
Rimuru's journey eventually led to a fateful encounter with Shizue Izawa, the Japanese girl who had been possessed by Ifrit. By this time, Shizue had grown into an elderly woman known as the "Conqueror of Flames," who had spent years as an adventurer before becoming an instructor at the Free Guild. As she aged, she felt Ifrit becoming harder to control and decided to journey to confront her demon lord one final time.
Their paths crossed when Ifrit's will finally overtook Shizue near Rimuru's growing monster town. In the ensuing battle, Rimuru realized that physical Water Blades were ineffective against fire elementals. After absorbing an Icicle Lance magic spell from his ally Elen, he understood that energy-based attacks worked against elementals and quickly dispatched Ifrit's salamander minions.
When facing Ifrit directly, Rimuru survived the fire giant's powerful "Flare Circle" attack thanks to his Resist Temperature skill, then bound Ifrit with Sticky Steel Thread and consumed him. This revealed Shizue's memories and allowed Rimuru to understand her tragic past.
After defeating Ifrit, Rimuru cared for the elderly Shizue, who recognized him as a fellow Japanese. In her final moments, she asked Rimuru to consume her rather than let her be buried in this world, and requested that he confront the demon lord Leon Cromwell who had cursed her. Rimuru promised to fulfill her wish and used Predator to absorb her, hoping she would find peace within him.
This profound connection with another Japanese person gave Rimuru new purpose and direction. After Shizue's passing, he inherited her abilities and discovered he could transform into a human form resembling her-with silvery-gray hair and golden eyes. This transformation would allow him to interact more easily with humans and pursue Shizue's final request to confront Leon Cromwell.
第 9 章
Growth and Potential: The Path Forward
As the first volume concludes, Rimuru has established himself as a unique and powerful being in this fantasy world. From his humble beginnings as a simple slime, he has built a thriving community of evolved monsters, forged diplomatic relations with the dwarven kingdom, and inherited the legacy of Shizue Izawa, a legendary adventurer. His transformation from a lowly monster to a respected leader showcases the unprecedented nature of his evolution, defying the conventional hierarchies of this magical realm.
The disappearance of Veldora, the Storm Dragon, has created a power vacuum that threatens to destabilize the entire region. Various kingdoms, including the Beast Kingdom of Eurazania and the Eastern Empire, are eyeing the now-accessible Forest of Jura for expansion. The forest's magical resources and strategic location make it a prime target for territorial ambitions. Unbeknownst to Rimuru, his growing settlement - which he named Tempest - sits at the center of this potential conflict. The Heroic King Gazel Dwargo of Dwargon has already recognized something special about him, ordering his agents to track Rimuru's movements and assess whether he represents a threat or potential ally.
With his newly acquired human form and the skills inherited from both Veldora and Shizue, Rimuru stands poised to play a pivotal role in the world's future. His unique abilities - including Predator, Great Sage, and the magical capacity of a True Dragon - make him potentially one of the most formidable beings in existence. He has promises to keep: to free Veldora from his prison within the Unlimited Imprisonment, and to confront the demon lord Leon Cromwell who cursed Shizue. These quests will inevitably draw him deeper into the complex politics and power struggles of this fantasy realm, where ancient beings and modern nations vie for supremacy.
What began as a simple tale of reincarnation has evolved into something far more complex - a story about building connections across different species, challenging deep-seated prejudices, and finding purpose in a second chance at life. Rimuru's leadership style, emphasizing cooperation and mutual benefit rather than domination, represents a radical departure from the typical monster-human dynamics. His growing nation of Tempest stands as a testament to the possibility of peaceful coexistence between traditionally antagonistic races.
As Rimuru himself reflects, "I may have lost my human body, but I've gained something far more valuable - friends who accept me for who I am, regardless of my form." This philosophy has become the cornerstone of his governance, attracting diverse beings from goblins and direwolves to dwarven craftsmen and human adventurers. The journey of Rimuru Tempest has only just begun, but already he has demonstrated that even the humblest of creatures can reshape the world through kindness, intelligence, and the unwavering willingness to protect those who depend on him. His story suggests that true strength lies not in raw power alone, but in the ability to unite others under a common vision of prosperity and peace.
