After subduing the Flügel, Akiyama Ren used the power of the Star Cup to restore the Disboard world.
The apocalyptic remnants—splintered skies, scorched lands, shattered ley lines—vanished under his divine will. In their place rose lush green mountains, vast pristine forests, and clear, untainted waters. The heavy spiritual fog that had once choked the world dissipated, and the celestial curtain cloaking the heavens faded.
For the first time in ages, the races of Disboard saw the sun, moon, and stars in their true brilliance. The entire world blossomed like a newborn, a paradise reborn from chaos.
Then, a voice echoed across the consciousness of every living being.
"By my will as the One True God of Disboard, let it be known across all realms: the sixteen sentient races shall henceforth be recognized and bound by the Ten Covenants. From the divine Old Deus who once waged war across the heavens, to the incomprehensible Phantasma that drift beyond mortal understanding; from the pure Elementals of raw magic, the proud Elves with their ancient spells, and the fearsome Dragonoids forged in combat, to the Flügel—winged god-slayers born of divine wrath—and the ancient, towering Gigant. Let the skilled Dwarves and elusive Fairies stand among them, as do the memory-weaving Demonia, the noble yet cursed Vampires, and their kin, the survival-driven Dhampirs. The sea-dwelling Seiren and instinct-guided Werebeasts take their place, alongside the calculating Ex Machina born of logic and war. And lastly, though weakest in magic, let the Imanity be acknowledged—for in cunning and resolve, they alone challenged gods."
"All large-scale invasions and acts of extermination between races are prohibited. Higher races shall not slaughter the lower."
No one dared disobey. Not even the most prideful God Spirit dared raise a voice in defiance.
After all, Akiyama Ren had not only defeated the War God Artosh, but subdued the Tianyi Kind—Disboard's ultimate God-slaying weapons—and claimed the Star Cup, becoming the true Only God of this world.
To the people of Disboard, he had become akin to the will of the world itself. One thought from him could birth life—or end it.
For the lower races, this decree was salvation. Especially for the Human Kind.
Now recognized as one of the sixteen races, they were no longer the world's punching bags nor mocked as monkey-like creatures. The Star Cup itself acknowledged them, and the changes Ren made to the world's environment allowed humans to thrive freely beneath the sun.
Having established divine order, Ren turned to his next objective.
Accompanied by Azril and Jibril, he headed toward the lair of the Ex Machina—the mechanical race renowned for their analytical prowess.
He wasn't here to conquer them—at least, not in the traditional sense. His real purpose lay in connecting his King of Wisdom skill to their vast neural networks. After all, in the original timeline, the Ex Machina had been capable of stripping the War God of his god spirit.
Their computation potential was limitless. And Ren wanted that power to enhance the King of Wisdom's analytical capabilities.
As expected, the Ex Machina greeted his arrival with resistance. Though aware they had no chance of defeating the Only God, they stood firm—until Ren proposed direct neural integration.
That was when hostility flared.
"Ugh… stubborn, just like in the movie…" Ren muttered.
Still, he didn't wish to hurt them. Instead, he went straight to their central command unit—Einzbern—and, using a transformed index finger, created a direct data port to his divine system.
Connection successful.
The King of Wisdom immediately began its digital invasion, diving into the Ex Machina's network to extract operational logic and computational frameworks.
In response, the Ex Machina linked together in a desperate effort to fend off the intrusion. But it was futile.
Ren activated the Star Cup's amplification, boosting the King of Wisdom's speed to unfathomable levels.
The result was decisive.
The Ex Machina's core framework was cracked, copied, and recompiled. But Ren didn't stop there. Before disconnecting, the King of Wisdom rewrote the Ex Machina's foundational code—making all of them loyal to the Only God.
Their once calculating, mechanical gazes softened. Awe replaced resistance.
The moment Ren withdrew his divine presence, the Ex Machina all dropped to one knee.
"We pledge allegiance to the Only God."
Akiyama Ren grinned.
"Another elite force under my command."
He appointed Einzig to continue her role as commander, ordering them to rebuild and multiply. Like the Flügel, they would soon be taken to other worlds—where conquest awaited.
Still, for smoother communication, Ren selected one special analysis unit: designation c207Pr4f57t9.
But he saw something more.
Her small frame, starkly pale skin, crimson eyes, and the mechanical tail protruding from her back—it was unmistakable.
"Schwi…" he whispered.
Schwi had many similarities with Shiro, the heroine of "No Game No Life," but also countless differences.
Her most striking feature was the pair of twin mechanical tails extending from her back, elegantly swaying with every subtle movement. Her pale, porcelain skin seemed almost unreal against the backdrop of her deep purple hair, which was unkempt yet somehow charming, flowing down to her waist. Her crimson eyes stood out like rubies embedded in her delicate face, radiating intelligence tinged with curiosity.
Despite her mechanical frame, there was something undeniably adorable about her. Her petite frame and the slightly confused look she often wore tugged at one's protective instincts.
Akiyama Ren gently patted her head and said with a warm smile, "From today onward, your name is Schwi Adagaki Akiyama. You're my imouto—my little sister."
"Imouto... sister...?" Schwi blinked, her red eyes flickering in thought.
Placing her hand on her chest, she tilted her head, as if trying to process the unfamiliar feeling of her heart—or rather, her core—beating faster. Something inside her mechanical body was responding to Ren's words, speeding up as if resonating with newfound purpose.
Ren's eyes then flicked to her barely-clothed mechanical body. Her exposed frame, though not inappropriate by Ex Machina standards, didn't sit right with him.
With a wave of his hand, a sleek, black-and-white bodysuit materialized around her, tailored perfectly to her frame. It resembled a futuristic battle suit, accentuated with glowing runes and soft metal plating. It both protected and enhanced her movements, while retaining the elegance of her form.
Nearby, Azril and Jibril watched the interaction, their eyes narrowing ever so slightly. There was a tinge of envy, though neither said a word. Azril frowned. "To think he'd dote on a scrap-metal girl like that…"
Jibril pouted, folding her arms. "Master's taste is… unconventional, as expected."
Ignoring their reactions, Ren gathered the trio. "Let's go," he said with a smirk.
Instead of returning to Avant Heim, he brought Azril, Jibril, and Schwi to a desolate area. There, he summoned the Star Gate.
The giant obsidian ring shimmered with pulsating energy, embedded with otherworldly runes and symbols that twisted through time and space. With a loud hum, the portal opened.
The three girls stared in stunned silence.
Jibril was the first to speak, her eyes shining with curiosity. "Master... what is that?"
Ren smiled. "This is the Star Gate. A key that allows us to travel across the multiverse—to see the myriad worlds."
"Multiverse... seriously?" Azril muttered, utterly dumbfounded. "Even the War God couldn't do something like this."
Schwi remained quiet, but her eyes glowed intensely. Her internal processors whirred rapidly as she attempted to analyze the portal's structure.
After a few seconds, she frowned. No matter how she tried, she couldn't comprehend it.
Ren chuckled and stroked her head again. "Nice try, Schwi. But this is a power even beyond the Ex Machina's understanding. Not even if your whole race worked together could you decode the Star Gate."
Schwi's lips formed a small pout. "Understood. Halting analysis."
"Alright, ladies," Ren said with a grin, stepping into the portal. "Let's go."
The girls exchanged glances and followed.
As the Star Gate shimmered and disappeared behind them, the scenery changed.
—
Dungeon ni Deai wo Motomeru no wa Machigatteiru Darou ka
The bustling city of Orario spread out below them, the grand Tower of Babel piercing the sky. From within, Ren and the girls could feel the divine pressure of numerous beings.
Azril tensed up instantly. "T-These auras... They're all from Gods!"
Jibril narrowed her eyes. "Though their divinity is sealed, the purity of their divine presence remains... astounding."
Schwi silently activated her sensors, scanning the area, but even her advanced systems couldn't properly measure what she was sensing.
Sensing their anxiety, Ren raised a hand. "Relax. These Gods aren't enemies. They've sealed their Divinity and descended to this world to guide and nurture the mortal races through Familias."
The three looked at him, clearly confused.
Ren patiently explained the entire setting of the DanMachi world—the divine descent, the rules of the Gods, the formation of Familias, and the nature of Dungeon exploration.
Hearing this, the girls fell silent.
"The Gods... helping monkeys?" Azril muttered, her face twitching in disbelief.
"I... I don't get it. Why would they lower themselves like that?" Jibril added.
Ren smiled. "You're underestimating humans. Most worlds across the multiverse have humans as the dominant race. In fact… I used to be human, too."
"EHHHH?!" Azril's jaw practically hit the floor. "M-Master was a monkey?! That's just—no way! That can't be!"
Jibril, however, simply nodded. "That... makes sense."
"Huh?! You actually believe him?!" Azril exclaimed.
Jibril smiled wistfully. "Master's growth and power surpass logic. In a way... it's far more believable that he rose from a lower life form than was created perfect."
Ren turned his attention to Jibril, a hint of appreciation in his gaze.
Though Jibril was created by the War God as a weapon, she was far from mindless.
Among the Flügel, she was born as the weakest—but because of that, she had room to evolve.
She learned and adapted. She challenged the rigid systems of her people and rewrote divine formulas. She alone used Heaven's Strike against her own creator. She fought Dragonewts, dismantled Elven capitals, and learned forbidden techniques like Time Transfer and Permanent Fourth Blessing.
Her battle record was absurd. Total battles fought: 245.
Total times seriously injured: 116.
Enemies slain solo: one Giant Kind, one Dragonewt, one Fantasy Species, all Four Heavenly Kings of the mutated Demon Species, and countless Elves, Spirits, and other races.
It was through this endless cycle of battle, injury, and growth that Jibril climbed from the bottom to the pinnacle. Now, even Azrl, the First-Generation of the Flügel, could no longer match her in combat.
Her strength was unquestionable. She had become the strongest single-combat anti-god weapon in existence.
Because she had walked the path from weakness to strength, she could understand and believe what Akiyama Ren said. His words about the strength of humans weren't just empty boasts.
Schwi remained silent. Though she struggled to fully believe it, her logical circuits told her there was no reason for Ren to lie to them. And so, she chose to accept it.
After a quiet pause, Azril finally raised her hand with a gleam in her eyes. "Master... did we come here to conquer this world?"
Her voice was laced with excitement and anticipation, like a warrior itching for battle.
After all, the Flügel were Godslayer weapons forged by the War God. Their greatest thrill came from battle, from overwhelming opponents with divine strikes. And in this world, the number of gods was uncountable!
The Flügel arriving here was like dropping a pride of lions into a field of fat, lazy deer.
But Ren shook his head. "Not for now."
He looked toward the horizon, his expression calm. "This world—Orario, the Dungeon World—is the perfect beginner village. In the future, when I want to raise ordinary girls around me into something greater, I'll have them join my Familia. With a Blessing and the Dungeon's leveling system, they can gradually become stronger."
He crossed his arms. "If we destroy this place now with war, that opportunity is gone."
Azril frowned slightly, clearly disappointed.
Ren added with a grin, "Besides, there are a lot of girls I like in this world."
He ticked them off with his fingers. "Ais Wallenstein, Liliruca Arde, Tiona Hiryute, Riveria Ljos Alf, and of course, Hestia herself."
"If I invade this world now, they'll definitely fight back. And with how stubborn they are, even if I win and force them to submit... they'd probably choose death instead."
He let out a short sigh. "And what's the point? This world doesn't even have anything comparable to the Star Cup or Divine Concepts like the ones in Disboard."
He turned to Azril. "No profit. No gain. Just endless hassle."
Azril blinked, then nodded slowly, a little embarrassed. "Right... understood, Master."
Seeing her accept it so quickly, Ren smiled. "Don't worry. We may not invade this world, but there are plenty of others that need conquering."
His tone took on a mischievous edge. "Like the God-Slayer World. It's perfect."
He could already envision it clearly.
In that world, he could gather all the witches, take all the Divine Tools, and have the witches summon Heretic Gods daily. Every time a Heretic God was defeated, he'd gain a new Authority.
And best of all—Heretic Gods never truly died. They returned to myth, ready to be summoned again.
It was like harvesting crops over and over again.
"A true Authority farm," Ren murmured.
Azril's eyes sparkled. Jibril's expression also shifted into one of interest. They could already sense the battles awaiting them.
Even Schwi displayed signs of curiosity, tilting her head in a slightly mechanical manner.
Returning to the villa, Ren found Hestia lounging lazily on the sofa, giggling at an episode of Tom and Jerry.
She didn't even flinch when Ren entered with three unfamiliar girls in tow.
Instead, the moment she saw them, she pointed and asked bluntly, "Oi, who are these girls? You brought back three after going out? Are they your new Familia members or something, Ren-kun?"
Azril, Jibril, and Schwi stood awkwardly behind him, unsure how to respond.
Hestia scrutinized them.
First, Azril and Jibril. Wings? Check. But the wings came from the wrong places to be Beast People. And what kind of species had geometric halos above their heads?
Then she saw Schwi.
"H-Huh...? What is that?" Hestia leaned in, utterly baffled.
"An automaton...? No, she's way too advanced. Even the Magic Stone tech in this world couldn't produce something so refined!"
Hestia circled around Schwi, poking at her exposed armor plating.
"W-Wait, she's a robot, right? A magic robot?"
Schwi blinked, but said nothing. She was still running calculations on how best to interact with this goddess who had just poked her repeatedly.
Jibril gave a slight bow. "Master brought us from another world. We'll be staying with him from now on."
"M-Master?!" Hestia nearly choked. "You mean Ren-kun?!"
"Indeed. He is our Only God," Azril said proudly.
Hestia looked at Ren, stunned. Then at the girls. Then back at Ren.
"...You're not building a harem, are you, Ren-kun?!"
Ren gave a cheeky smile. "I wouldn't call it a harem. Let's just say... it's a specialized combat team."
Hestia puffed out her cheeks. "Baka! You better not forget who your first goddess is!"
"Of course not, Hestia-sama~" he replied playfully, offering her a dramatic bow.