Most of the games I'd played in my life come from two companies: Konami and YGOPro. Sometimes I wonder if it's because of this that I ended up reincarnating?
…That's right, I was reincarnated.
Maybe it's because even in the year 5025, I was still opening duels with a vanilla 4-star Normal Summon. Due to some accident, I found myself reincarnated into the world of the World Legacy, reborn as a squalling blonde-haired infant abandoned by the roadside.
But seriously, man, getting isekai'd into a baby's body is one thing—did I really have to be a discarded orphan?
'Hey, hey, somebody notice me! I want milk… I'm starving…'
Thankfully, fate wasn't entirely merciless. Just as the child was about to die of hunger, a passing young mother discovered me, kindly took me in, and gave me a new name: Auram.
This was a world of extremely low technological development, so my childhood after reincarnation was uneventful and not worth much retelling. Yet even such a troubled, joyless upbringing, looking back now, still becomes a precious memory that brings a faint smile to my lips. For it was during this time that I met companions I could entrust my life to.
There was Ningirsu, always acting smug but reliable in a pinch; Ib, gentle and kind, my inevitable childhood friend; and the adorable little green dragon, Imduk, who never stopped clinging to Ib…
At first glance, we seemed nothing more than three ordinary kids and one inexplicable Level 1 monster. Yet the adventures awaiting us were beyond what most people could ever imagine.
Perhaps because of my arrival, the course of the World Legacy tale shifted from the one I had known.
I once fought side by side with Sky Striker Girl from another world. I once defeated the arrogant Silver Lord in the White-Silver Labyrinth. I clashed with Vanquish Soul and dueled atop flaming steeds. I Xyz Summoned alongside the Onomatopoeia brothers to kickstart Utopia. I explored miracles with the Adamancipator team. I learned the mysteries of Fusion with the Tearlaments mermaids…
We braved countless trials. In the end, we repelled the invaders, halted Lee's rampage before she could destroy the planet, and averted the tragic finale where someone would otherwise sacrifice themselves to return everything to the beginning.
Yet that was not the end of the story.
Though we defeated Lee, the greatest mastermind behind the World Legacy saga, the "great darkness" lurking behind the world still remained.
The Tearlaments being struck down from Primeval's world into the World Legacy by the invading Kashtira. The supreme dragon of apocalyptic power who crossed dimensions—the True King of All Calamities. And mysterious forces from beyond the stars, spanning millions of light-years…
A new storm was brewing. We could not stay still.
And in the final battle, the Star Relic—the World Gears of Theurlogical Demiurgy—was forced to manifest.
Long ago, the God of Creation and His dragon retainers maintained order in this world, balancing the forces of creation and destruction. But over time, the balance broke down. On his deathbed, the God sealed destruction deep within the planet and transmuted creation into the "Keys" that would protect life. The sealed darkness became the last Star Relic.
But in Yu-Gi-Oh!'s lore, "darkness" does not always mean "evil." The World Gears of Theurlogical Demiurgy is no exception.
Light and darkness, creation and destruction—these twin forces are the anchors of this world's stability. As long as the World Gears was kept from going berserk, its essence was beneficial to the planet and even a bulwark against alien threats.
Yet in the climactic battle, the World Gears suffered damage. Though it still barely functioned, urgent repairs were necessary in order to safeguard the world against looming crises.
That said, restoring such a divine relic would require unimaginable quantities of mana.
Thus, for the long-term stability of the planet, we resolved to split up: Imduk and part of our forces would stay behind to guard it, while Ib and I formed one team, Ningirsu and Galatea another, each of us setting out to search for a way to repair the World Gears.
This was the beginning of a new journey to save the future of the world.
Thanks to Ib's newfound power—the staff she always carried was in fact a shard of the Key containing creation's essence, resonating with the World Gears and granting her the ability to traverse parallel worlds—we ventured into new realms and met new friends.
At first, all went smoothly.
Albeit midway, Ib and I quarreled over a trivial matter.
"Idiot Auram! Why don't you just spend your whole life with those Tearlaments mermaids!"
"What? I can really spend my whole life with Miss Tearlaments?!"
"???"
"No, no, they were the ones moving on their own, I didn't do anything! Ib, please let me explain!!!"
In the end, after a heap of misunderstandings, Ib stormed off in a huff. Of course, I regretted it terribly. As I rushed to chase after my childhood friend, a mysterious summons suddenly pulled at my soul.
When I came to, I found myself in a completely unfamiliar place. Before me stood a golden-haired girl I had never seen before, her eyes shining as she looked straight into mine.
I had to admit, she was stunning. Though we had just met, I felt an oddly familiar presence about her.
That pitifully flat chest—wasn't this just my Ib?! …Wait, no, you're not Ib.
Then who are you? Could it be there exists in this world a maiden even flatter than the World Chalice Justiciar?
…
PS: This is a Yu-Gi-Oh! x Type-Moon crossover fanfic. Since I'm focusing on the card lore worldbuilding, I've inevitably had to supplement with plenty of original interpretation. Please don't flame me too hard (bows)! The core concept is the fusion of worlds. As you can see, I've already blended the World Legacy with various archetypes to ease the later story. The Type-Moon side will get similar treatment soon—you'll feel it right away~
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