The Heroine is My Stepsister, and I'm her Final Boss-Chapter 403 - 401: I know

They were right in a way.

Atlas hated it—hated admitting it even in the private corners of his mind—but they were right. The curse wasn’t just eating his mana. It wasn’t eating his skin or blood or bones. It wasn’t gnawing at his life force like some mindless parasite.

No.

It was targeting him.

His identity.

Every title, every version of himself stacked like mismatched stones inside a tower that had already begun to tilt under its own chaos.

The Guide.

The son of Lilith.

The prince.

The brother.

The boyfriend.

The weapon.

The mistake.

The miracle.

The walking contradiction.

And then he—fucking idiot—went and dumped another role onto the pile.

Prophet.

A word that didn’t feel like a crown. It felt like a collar. A weight clamped around his throat, dragging him deeper into waters that kept shifting tides and temperature as soon as he learned how to swim.

His epic was a convoluted mess right now—threads knotted, torn, rewoven, broken, tied again by hands older than existence. And the curse was crawling through every narrative vein he’d ever created, devouring the inconsistencies, the frayed edges, the mistakes, the memories, the beliefs.

And there were so many.

He felt it again—an ugly pulse beneath his ribs, like someone pressing their thumb into a bruise over and over, checking if it still hurt.

It did.

It always did.

The white realm around him stretched in all directions, endless and empty. A silence that wasn’t silence, just the absence of everything else. Ivory fog swirled lazily around him, touching his skin like cold whispers. His breath left faint ripples in the air—as if the realm itself reacted to him, like water disturbed by a single drop.

The Realm Between.

Death’s lair.

The place where his soul had shivered once before. The place where he’d met Fate. The place he didn’t want to return to because it held too much truth in its stillness.

But here he was again.

Dragged in by his own desperation and anger and the crawling terror of losing control.

He shouted for Lady Fate.

His voice echoed strangely—splitting, doubling, merging again like multiple versions of him were screaming from slightly different angles of reality.

"So what needs to be done....Give me the answer.... Answers, I need answers, not this confusing shit!"

His throat burned. His mana flickered. The curse pushed harder.

Another title, another crack forming.

"...until I don’t have it, I will be here, here forever." He voiced.

Atlas clenched his fists. His jaw locked.

Fate smiled at him—slow, amused, as if he were a child interrupting her nap.

"Why," she purred, "are you annoying us so much?"

Atlas didn’t answer with words first.

He answered with steel.

His axe appeared in his hand—the gift of Odin, humming with old storms and old violence. The edge vibrated, trailing sparks of lightning that faded into the white.

He pointed it at her throat.

"I don’t want vague answers, I need clarity here, not sum of questions which I need to ask more for more answers..."

Her smile widened—dangerous, playful.

She didn’t deny it, didn’t confirm it, just tilted her head with the infuriating grace of someone who held too many secrets and far too much power.

"Didn’t you come here because of your curse?" she said softly. "Why change the subject?"

"The curse," he growled, "is because of you."

"Oh, darling," she said sweetly, "everything is because of me..."

His grip tightened. His arm trembled—not with fear, but with the force of holding himself back. The curse pulsed again, more urgent now, as if feeding on his anger. It crawled up his spine, a cold fire twisting through nerves and mana channels, turning everything into something wrong.

He breathed through his teeth.

Focus.

"Can you relieve it or not, answer me?" he asked.

Fate’s expression didn’t change.

"Again...as I say, only...," she said, "if you hand your system to Lara. Or take hers for yourself. Then... perhaps... I can help."

Help.

That word snapped everything into clarity.

Help meant she didn’t know the cure.

Help meant she was guessing.

Help meant she was useless.

Atlas laughed. A hollow, jagged sound.

"You don’t know shit," he said. "You’re weak. You’re actually weak. The Empress scared you so bad you hid in this shitty realm. You can’t beat her magic. You can’t beat her lineage. You can’t even touch what she left on me."

Fate’s smile vanished.

Her aura exploded.

She grabbed him by the throat, lifting him easily. Her fingers dug into his skin like cold needles.

"You dare behest me again...," she hissed, "before ME? I hold every fate in every timeline. I write the rise and fall of kings. I can crumble nations with a single—"

"Nothing," Atlas rasped, "you can’t do nothing...."

Her eyes darkened with a rage that rippled through the entire white realm. Threads of fate—thin, luminous strands—emerged around her, weaving themselves into the shape of a spear.

She raised it.

And then—

Thud.

It echoed like a giant heartbeat.

The entire realm shuddered.

Both of them froze.

Atlas turned.

Fate turned.

And as the fog parted, two figures approached—one a tall silhouette of shadow and bone, the other wrapped in the remnants of night itself.

Death.

And beside her...

Dracula.

"Your curse," she said calmly, "is not what you think."

Atlas swallowed.

The white air tasted metallic now—like blood and static and something older than language.

"It’s not targeting your mana," Death continued, her voice soft but weighted like a tombstone lowering into place. "It is targeting your story. Every identity you carry. Every thread you’ve let define you."

Atlas felt something inside him twist—sharp, wrong, like a knife dragged slowly across the inside of his soul. A bitter pulse followed, hot and cold at the same time, as if his heart had momentarily forgotten what rhythm meant.

He already knew.

Some part of him, buried beneath layers of bravado and denial, had known from the moment the curse first burned its way into his veins. But hearing it out loud—hearing Death name it—made it real. Solid. Inescapable.

Fate crossed her arms with the practiced arrogance of someone who had seen empires rise and fall and felt nothing either way.

"It’s the fault of the one who writes all fate," she said, voice dripping disdain. "A person who weaves destiny far more cruelly than I ever could..."

Her lips curled.

"The one above all. The one below all. The first pen. The last pen. The writer, the creator. Call them whatever you like. Their titles don’t matter—only his reach."

Atlas blinked, the words landing like cold rain.

"The one above all and the one below all... the same individual?"

Death nodded once, slowly, the gesture almost reverent.

"It doesn’t matter what name you give them," she said. "There is only one master above everything. One storyteller behind every thread. And the Empress is using HIM as a conduit for the curse."

The air thinned around Atlas. His mind scrambled, trying to grasp the enormity of what she was saying.

A creator.

Not a god—not in the divine sense. Something older. Something stranger. Someone who didn’t live inside the story but outside it, shaping it with hands that had never known rest. A maker of rules. A sculptor of laws. A writer of stories who didn’t ask permission from the characters trapped inside them.

"That’s bullshit," Atlas muttered, though his voice lacked its usual edge. "If he’s a being, I’ll just—handle him. End the curse."

Fate, Death, and Dracula all laughed.

Not mocking.

But almost delighted, the way adults laugh when a child boldly declares they’re going to punch the moon.

Their voices echoed through the white realm, harmonizing in a strange, chilling way—as if three different eras of existence were amused at the exact same time.

It echoed across the realm, making the fog shiver.

Dracula spoke first.

"You can’t defeat the creator."

"You can’t fight something that wrote your existence," Fate added.

"You can’t kill the ink in which you were drawn," Death finished.

Atlas’s jaw tightened.

"Then ...then just fucking cure me."

Dracula stepped closer, his presence heavy with old dream-magic and endless echoes.

"If you want to survive," he said gently, "don’t try to tackle the creator. Don’t fight him. Don’t rebel. He will always be ten steps ahead of you."

Atlas clenched his fists.

"Then what? Beg?"

"Talk," Dracula corrected. "Ask him to lessen the plot he is forcing onto you. The weight. The roles. The contradictions. The curse is born from too much story being shoved into one vessel."

Atlas exhaled shakily.

His breath curled into frost.

"Where do I find him?"

Fate moved closer now, expression softer—almost nostalgic.

"You are in the fourth realm," she said. "It isn’t bound by time or space. We will help slow the curse. But that’s all we can do."

Her fingers touched his chest lightly—right above his heart.

"You carry the first avatar," she said. "Our friend. The one who created the LAWS with us. We miss him. This is... a chance for him. Not you."

Atlas’s eyes widened.

A cold, unwanted realization crawled up his spine.

They weren’t helping him.

They were helping the version of him that came before him. The one hidden deep inside. The one awakening.

Fate pushed him gently—yet the force sent him sliding through the realm as if gravity lost meaning.

"Go," she whispered.

"Main character of the world."

The realm brightened.

The fog twisted.

The ground dissolved beneath him.

"The creator might listen to you."

Her voice faded.

Light swallowed everything.

The last thing he felt was the curse tightening, a cold hand wrapping around his heart, squeezing, whispering:

This is who you are.