Prologue

In a nation enclosed by thunder, Inazuma, lies the Yashiori Island.

Blanketed by pitch-black clouds, intermittent thunder flashes the skies as a torrential downpour of rain batters the island, an ominous foreboding surrounding the air. However, the island did not always reek of a foul stench of death. 

A long time ago, the island was bustling and teeming with life. People built settlements and they enjoyed bountiful harvests all year round... until everything changed when the serpentine god launched an attack.

War quickly raged on the island for days on end, culminating in the deaths of a thousand men.

Then, came the deciding moment when the shogun confronted the usurper.

Amidst the horizon littered by corpses, the heavens quaked before her presence, and upon drawing the sword nestled between her bosom, came a single, thundering stroke.

No one knew what happened next.

All that people witnessed was that from the cracks in the clouds, sparks of lightning coalesced into the shogun's blade and formed a blinding pillar, cleaving the world with utter devastation.

In the instant the usurper was felled, swathes upon swathes of miasma diffused into the atmosphere, casting the start of the torrential rain...

Lightning strikes as the story rear its end.

Facing the remnants of the fallen god, sat an old man at the mouth of a cave, the blacks of his eyes gone and hollowed out. 

Once upon a time, his appearance would have attracted many eyes. Now creases riddled his forehead, bones protruded through his wrinkled skin, and his black hair have all but gone white, a veritable testament to time and proof of his ailing body.

Reduced to a fraction of the man he once was back in his prime, breathing alone drew all his strength, and simply moving took a massive toll on his health.

"Teppei..."

An old voice reverberated with surprising vigor.

The young man beside him jolted at attention, tears welling at the unconveyed meaning through his words. It was a long time coming at this point.

His death was imminent.

Teppei understood this yet was unwilling to accept it.

Seeing his disciple turn grave, the old man closed his eyes and thought for a moment, a resigned smile appeared on his face soon after. "Those who chose to carry on a will... shall, at times, find themselves at one end of each other's blade. But so long as you firmly carry on with the belief, and your heart upon the right place, the path you chose will never betray you."

"Eventually, those that mastered their sword will arrive at the same place. May this moment be where we part ways, but we shall meet again no doubt, and until then let us accept this parting with grace," he continued.

When the old man opened his eyes once more, his gaze was distant, looking far into the yonder looming before him. 

Stepping out into the open rain, though not a drop of water on his body, the old man poised with his katana. A form which belied the decades spent in mastery to the art of the sword, leaving the limitations of age aside for but a moment.

His pupils reflected the young man, a silent invitation to observe his next move.

This will be the last lesson he will impart to him as a student. Henceforth, the path will be paved by his own sword.

With a smooth arc on the air, sun rose at the dawn of dusk, repelling the encroaching darkness seeping through the land. His haori billowing in the wind created by the force of his own strike, and his sleeves fluttered like autumn leaves.

As soon as an instant, he spun along with the momentum, now his blade suspended in midair. A picture of parhelic rainbow unfurled before their very eyes, blending into the sublimity of the scene.

It was surreal.

His sword art was so lifelike, that with every swing, it created a tangible mirage of the sun itself. Even the heat felt so real that Teppei began to confuse the exhilaration beating on his chest, the curiosity of peering through the pinnacle of a height yet unknown; a technique that was refined to a point it formed a stark contrast to the sight of the decrepit old man. 

The routine continued, disregarding everything else as if they were contained in their own world. An arm that seemed to be on the verge of breaking, miraculously kept on to sunrise, performing a series of 12 moves in succession without break. Time flowed quickly before they knew it.

Alas, everything has to come to an end.

"M-master...!" Teppei finally broke down in tears once he got out of his stupor, sensing that the demonstration was drawing to a conclusion. He did not want it to end, at least not yet. There were still many things he wanted to learn from him and so many things he wanted to show.

"Please don't leave!"

Sadly, his wishes were gone unheard.

The old man sheathed his blade and turned around without another word, his departure accompanied with wailings drowned by the downpour of rain.

Teppei thought his retreating figure seemed lonely, one that was simply awaiting the embrace of death.

---Or so one would think.

After making sure he was out of eyeshot, the nameless old man hightailed to the nearest cover, and plopped down to the ground in a manner that did not suit him. It was as though the death which stalked him was an illusion given the relief on his face.

Truth be told, he has a secret.

Adam was his true name and he was a reincarnated person.

[Quest completed!]

[Turning a canon fodder into a proper side character.]

[Objectives: Have Teppei learn how to utilize breathing techniques.]

[Rewards: 1 Multi-pull.]

Seeing the confirmation pop out of nowhere, Adam was thrilled. "System, open the reward!"

Without a second thought, he chose to redeem the spoils from the quest right then and there.

Blinking in response, the peculiar screen displayed a panorama of a sky with converging clouds. From the center, a comet falls down leaving a glowing trail before fracturing into ten smaller pieces, adding the final touch to the animation.

The results began to line up one by one afterwards until it came to the last draw, erupting into a rainbow hue.

Adam was taken by surprise as the sudden splash of light swallowed his vision whole.

Eventually, the light wanes and a single notification replaced the results.

Throughout the process, he tried to remain calm, but waves upon waves of emotions could be read from his pupils.

[Congratulations!]

There was now an image of a man posing on the screen.

A tall, and a slim young man with long black hair that is partially tied to the back, allowing the rest to drape on his shoulders. He has a pair of small black eyes and earlobes that are large enough to fit fairly large circular earrings.

Adam immediately recognized who it was by appearance.

[Character Card]

[Name: Suguru Geto]

[Rarity: SR~EX]

[Anime: Jujutsu Kaisen]

[Description: A kind-hearted and duty-driven young man turned genocidal fascist after his girl friend died from a gunshot. Suguru is one of the few special-grade sorcerers, formerly known as the "strongest" alongside his boy bestfriend Satoru Gojo, his technique allows him to manipulate vagabond cursed spirit by taking them orally.]

"This system really wants to grind me to the bones..."

Adam looked at the series of windows with an exasperated smile before turning his head to a particular mountain at a distance. The remains of a fallen god still looks up to the heavens defiantly to this day, and though it is long gone, traces of its insurmountable power continues to affect the land.

"It can't be a damn coincidence," Adam mutters with a long sigh.

His suspicions proved valid.

After all, a cursed spirit manipulator and the lingering cursed spirit of a god being in one place and at the right time was too great to be a mere coincidence.