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Using others for human experimentation is undoubtedly evil — no matter how grand the justification sounds, it cannot be defended.

But are there any other options?

You don't have the skills to create medicine yourself, and Kallen knows nothing about pharmacology either.

Perhaps... you could tap into the immense reservoir of knowledge contained within the *Void Archives*?

The term "Honkai disease" does appear within the records of previous civilizations, but it describes a different affliction than the Black Death.

While the Black Death ultimately arose from a form of Honkai outbreak, it manifested differently — and each form demands its own unique response.

Trying to find a cure for the Black Death based solely on theories about Honkai disease is like building castles in the sky.

It's not that it's impossible, but it lacks one crucial factor:

Human experimentation.

Could you use yourself instead?

No — that wouldn't work either.

Even the miraculous power of the *Key of Void*, with its endless knowledge, couldn't save more than a fraction. Your remaining time would burn away long before a solution was found.

After weighing all options, it seemed like letting Otto proceed with human experimentation was the only path left.

...

Is there truly no other way?

Must you really allow that pristine white wall to be stained with irreversible black?

There *are* other ways.

Lu Mian smiled faintly, his gaze growing softer as he looked at Otto. "I'm glad you have your own thoughts, and that you asked for my opinion first."

"But I still can't agree to you using others as test subjects."

To Otto, this wasn't a surprise. Instead, he sighed in quiet relief.

No one knew how much inner conflict he'd suffered — from making the decision to admitting it aloud to Lu Mian.

Otto looked at you with pure, unshakable trust. His face had softened.

He thought you would, as always, solve the problem with a warm smile.

But he didn't expect you to say what came next — with that same smile.

"My body is different from others. It won't be a problem. Use me for the experiments."

"…What?"

You still smiled.

But Otto looked at the warmth in that expression and found it harsh — blindingly so.

He silently took the hand that had just stroked his hair, pulling it into his own.

His trembling fingers wrapped around yours tightly — fragile veins visible on top, straining from effort.

—As if trying to anchor the crashing waves within him… and as if terrified that your hand might suddenly vanish.

The flickering yellow light illuminated Otto's emerald eyes, revealing not clarity or calm… but a volatile mix of madness and obsession.

"Even if everyone outside died," his voice cracked with hoarse intensity, "they're not even worth a ten-thousandth of your body."

When are people most powerless?

Maybe it's when their body no longer listens — when they bite their lip to hold back trembling, and still can't stay composed.

Otto finally lost control.

All the emotion he had suppressed for more than a decade surged out of his thin frame and poured toward you.

The once-impeccable bishop recorded this moment as well — not because Otto had lost composure, but because even in his collapse, he was still protected and comforted.

And thus, it wasn't shameful.

You weren't surprised. Not at Otto's breakdown — and not at where this road had led.

Because you knew Otto had always harbored a lion in his heart.

Because you knew Otto would someday rise far higher than you could imagine.

But for now, he still needed your care.

You didn't resist the grip on your hand. Instead, you raised your other hand… and softly tousled his disheveled hair.

Taming the front. Supporting the rear. The one who bears it all — in war, they are often called a scoundrel.

But the one who leads by example for the sake of a shared ideal — that person is called a comrade.

Yes — using others for experiments is undeniably evil.

But using *yourself* as a test subject to stop a disaster?

That's a sacrifice worthy of legends.

You are no saint — maybe not even a good person.

You've never wanted to show kindness, and you have no desire to save people you've never even met.

Your world has long been corroded and twisted. Your time is almost gone.

But for now… Otto and Kallen still need you.

You are the one who needs protection — not the one giving it.

Letting Otto experiment on you wasn't a selfless act.

It was a burden you accepted.

Because you had truly come to live in this world — and truly fallen in love with Otto and Kallen.

Because you had decided to guide them forward, and sincerely wished for their happiness.

And so — the weight of fate, of life itself, settled on your shoulders.

No one ever taught you how to be a good elder. That was never your role.

But… did you want to escape that responsibility?

You had thought about it — countless times.

Even if you couldn't do better than others, shouldn't you at least do *something* right?

And now… the time had come to act.

In your heart, no proper elder would ever watch their children suffer alone on the streets — not unless they were already dead.

So how could you possibly let them carry the guilt of human experimentation?

If you must, then let *you* carry it.

Even if you are barely more than a shadow in this world…

You will try to raise a sky for Otto and Kallen.

With this small, clever trick, you would shield Otto from inevitable corruption.

And help Kallen pursue her dream of saving the world.

You won't die — at least, not before the two of them truly grow up.

These thoughts never made it to words.

After comforting Otto, your warm, composed demeanor gave way to something brighter — youthful, idealistic.

You stood firm with the passion of someone still in their prime, and said:

"The brave raise their swords in fury — either against those stronger, or against those weaker.

But I'm different.

I want to raise mine against *fate* itself.

Otto — will you hold this sword with me?"

The wind was clear. The moon, bright. And neither would bow.

Otto stared at you silently.

His brows furrowed… and then he smiled — a twisted smile uglier than tears.

Otto Apocalypse could never resist your smile.

Otto Apocalypse could never turn down your invitation.

Because your very existence gave him the courage to love… and to be loved.

If this is the *light* you hoped for — then he will walk that road with you.

Five hundred years later, a new Schicksal Cathedral would rise — its plaza marked by a strange statue.

A sacred being, stabbing itself with a sword. Its body covered in cracks.

Some say this represents fate's cruelty. Others say it reflects the bishop's nobility. Still others say… it is a prophecy yet to be understood.

As for the bishop himself?

He only smiled, and cherished the memory.

Because it was all for someone he once loved.

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