The Lone SF Transmigrator in the Otherworld Forum

The accident that ensnared her brother in the Gate was no simple accident.

No matter how she tried to change the past, she could not prevent the future where her brother disappeared into the Gate. In the first place, it seemed the Gate's coordinates were not fixed, but rather specified to her brother's location.

She despaired. Just one more step and her long journey would have ended, yet that one step was lacking.

Her mind, worn down by hundreds of regressions, was reaching its limit.

Do I give up?

She admitted to a moment of weakness. Hadn't she done enough for her missing brother?

It was natural for such temptations to arise. What she had done so far was already beyond what an ordinary person could handle.

But she shook her head.

Her parents' accident was all her fault, just because she whined for a birthday present.

Then they had an accident on their way back after buying the gift.

To her brother, she had practically taken their parents away.

And that was not all. The past was no different. Besides the financial struggles due to hospital bills, her parents practically lived at the hospital for her sake.

In other words, her brother had spent most of his childhood alone because of her. And then their parents even died because of her…

She thought her brother would naturally abandon her after that. But he gathered what little compensation money there was and began grinding away his life to maintain her hospital bills.

Such a foolish brother.

Even though life would've been easier if he just gave up on me.

Even on the day she was diagnosed as terminal, he did not give up on her. He reassured her, saying he would find a way somehow and had no intention of giving up on his last remaining family. He urged her to keep fighting… and said how she must have had the hardest time.

"…"

That's right, her brother did not give up. So how could she?

If only for her brother, who tried to dedicate not only their parents but his remaining life for her… Just once, she wanted to give him a proper life, unburdened by her existence.

The moment she steeled her resolve once again, a miraculous opportunity arrived. The whispers that came with madness approached her with clear intent.

-Your kin is in another world.

The moment she heard that voice, her blood pressure skyrocketed as if her head was about to burst.

Drip-

Red blood flowed from her eyes and nose. The overlapping whispers that seemed to claw her brain made it feel like ants were crawling inside her head.

Still, her joy at finding hope was even greater.

"Who… are you, and why are you telling me this…?"

But she was not naive. She had not lived foolishly enough to swallow the bait after going through countless regressions.

-Open the door and welcome me.

The unknown being only repeated those ambiguous words, but she could not ignore it. After all, she had awakened the ability of infinite regression right after hearing that voice, and above all, if there was even a sliver of possibility to save her brother…

So she responded to the unknown will and surrendered her body. It was not long before she realized this was a kind of spell.

At first, she sensed something was wrong and tried to break the contract, but it was impossible.

Embarrassing as it was, despite being called the strongest hunter, this was beyond her ability to handle. She was powerless.

Figures. This is something, someone capable of granting the ridiculous miracle of infinite regression…

If there was any consolation, it was that the price she had to pay for the contract was surprisingly not bad.

No, it was rather good.

"Invariability?"

It was a kind of curse, permanently fixing her determination to save her brother in her inner self. Like Sisyphus in mythology, cursed to roll a boulder eternally, she too was cursed to live for a single purpose for eternity.

Okay. This might not be so bad instead.

Her mind was already becoming numb from repeated regressions. She had no particular desires or attachments other than the single purpose of gifting her brother a happy life.

As if burning the last flame of resolve in her, she crossed over to the world her brother was embroiled in.

After that, things became a bit easier. Whenever her sense of purpose blurred with each regression, the eternal curse would raise her up again, and after searching countless planets, she finally found her brother.

Led by madness, guided by whispers, she found her brother in the vast universe. In the process, she learned many things and realized that her brother's transmigrated life was far from ordinary.

However, she could not intervene directly. As if blocked by an invisible wall, whenever she exerted her influence, she could not escape the fate of being consumed by madness and ultimately killing her brother with her own hands.

It was around this time that she clearly realized something.

From infinite regression to the eternal curse, the being that whispered madness and bestowed miraculous abilities was acting with a definitive purpose. Thouogh she could not know exactly what it was, it was undoubtedly related to her brother.

And it was also crystal clear that it did not mean well for him.

No way, it can't be that…

Could it be that everything she had done since awakening her infinite regression was all according to someone's plan…?

The devastation of having her entire life denied was momentary. She was engulfed by fear.

Could it be that everything she had done for her brother was actually pushing him into an abyss?

I can't ever let that happen!

She teetered on the edge of madness, gathered information to break free from the unknown being's spell, and repeated countless regressions.

Even as she gave up her human body and was consumed by madness, she struggled desperately for a better future, a future free from these shackles.

Save for her will tethered solely by obsession, her mind had been completely consumed by the infinite flow of time. Her human self had long since been ground away, leaving only traces.

She was like a machine with a single purpose.

Fortunately, the so-called Outer God did not care what she did. As if whatever she did would not change the outcome.

But she did not give up, and time passed until she finally reached this point. It was no exaggeration to say she took a long detour to reach this very moment.

Thump-

Her brother's heart thumped powerfully in her hand. Despite being ripped out whole after performing a special sealing, her brother was unaffected by madness.

This miracle was possible because the other singularities already fused had achieved a delicate balance. She too had gained many things through fateful opportunities, which allowed her to keep sane in front of him.

It might seem like nothing, an insignificant result to her brother, but to her, it was a miraculous outcome achieved after tens of thousands of attempts. Because her brother's Mental Invariability trait itself originated from the madness of Outer Gods.

Irrepressible sorrow clashed with the madness in her eyes as she looked at the heart.

"I still wished we could have lived as normal siblings, just once."

Yui began to utter a spell. She would absorb her brother's immortality and bear the shackles in his stead. He would be freed from the shackles and live a normal life.

She had lied to her brother. She was sorry, but she could not just wait for him to give up his stubbornness while buying time. He would not give up anyway.

Moreover, she could not wait any longer.

I'm almost at my limit.

Although twisted, her sense of self still existed. That small piece of herself, usually sleeping within the madness, was preventing her from becoming a monster with only a purpose.

If her mind collapsed and her ego disappeared, the Outer God would surely devour her and wield her at its will. What that monster wanted was surely different from what she wanted.

Before that happened, she would absorb her brother's immortality and madness using this heart as a medium. It was an adaptation of a kind of sacrificial ritual to the Outer God.

Her brother would only be left with his humanity, for a normal but happy life.

Sorry, brother. I'm a bad sister, lying until the very end.

She chanted a spell inside a cocoon made of purple mane, and the heart, enveloped in purple light, began to beat violently.

Thump- Thump- Thump-

All that remained was to surrender herself to the sea of madness, losing even consciousness, and bear the shackles in her brother's stead in the new era.

The whispers shook Yui's mind, and it felt as if her head was about to explode, but she faced it calmly.

She summoned the last pieces of herself to face the end.

"It was so hard…"

As the light of her conscious mind faded from her eyes…

Thump- Thump- Thump- Thump-

Golden light burst from the abnormally beating heart.

As she wondered what was happening, a voice rang out.

"You should have told me then."

Warm golden light enveloped her completely.

***

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