Parallel Memory

Chapter 587: A silent vow

Zero stood in the silence that followed the Devil King’s last breath, his hand resting on Lilith’s trembling shoulder. The air inside the cell was unbearably heavy, not only from the staleness of abandonment but from the weight of the moment itself—the end of a life that had once commanded over the devil’s kingdom, the shattering grief of a daughter who had been forced to grow up without a mother and now had her father ripped away just as she had found him again.

He said nothing. Words felt meaningless here. But silence did not mean emptiness. His mind, sharp and restless even in battle, now churned with thoughts that he could not ignore.

The Devil King had looked at him before he passed. That single glance—so brief, so faintly laced with relief—had spoken more than any grand speech could. In that fleeting moment, Zero understood what was being entrusted to him. It wasn’t just Lilith’s safety. It wasn’t just the continuation of a dying father’s hopes. It was the weight of an entire bond—the fragile thread between Lilith and the family she thought forever broken.

Zero closed his eyes for a breath, steadying the heaviness in his chest. He had always lived in shadows, overlooked, dismissed, treated as someone meant to be in the background. He had grown used to silence, used to carrying his burdens without acknowledgment. But this moment felt different. It wasn’t the world ignoring him—it was a man of towering strength, a king, looking at him and silently saying, I leave her to you.

And Zero accepted it. Not because he sought honor or recognition, but because it was the only thing that made sense.

He glanced at Lilith, her pitch black hair tangled with the trembling of her shoulders as she wept. She clutched her father as though she could anchor him back to life, as though her grief could fight off death itself. He knew that feeling too well. He had lost things—friends, comrades, even the memories he had of the alternate world pulled him into its cruelty. He knew the helplessness of reaching for someone who could no longer reach back. It carved scars deeper than any wound to the body ever could.

But Lilith was different from him. She had lived in chains of manipulation, twisted into a weapon against her will. She had fought to claw her way back to herself. And now, finally, she had gained a fragment of truth about her past, only to have it taken away in the same breath. Zero could almost feel her pain seeping into the room like a tide of shadows, consuming her spirit as surely as her mana darkened the floor beneath them.

He tightened his hand on her shoulder—not forceful, but firm enough to ground her.

You’re not alone, he thought, though he didn’t say it aloud. Words could falter; gestures could carry deeper meaning.

His mind turned back to the Devil King’s story, replaying every syllable. A human mother. A forbidden love. A kingdom that cast her out. The King had carried his shame and hope alike, enduring unspeakable torture simply to tell his daughter the truth. And then, in his final breath, he looked at Zero. That was no accident.

Zero wasn’t a fool. He knew why. In Lilith’s eyes, he wasn’t just an ally or a companion—he had become something sturdier, a constant presence who shielded her without hesitation, who treated her as more than her title or her bloodline. The Devil King had seen that. And perhaps, in seeing it, he had found peace.

The thought weighed heavily on Zero’s chest, but not in a way that crushed him. It anchored him instead, sharpening his resolve. For so long, he had walked his own path without expectation from others. His strength was for survival, not for glory. But now, someone had given him a responsibility that went beyond himself.

Protector.

It wasn’t a word he ever thought would define him. Yet standing here, watching Lilith fall apart in grief, he realized that was exactly what he had become.

Zero’s thoughts drifted further, into the wider implications of this moment. The Devil King had been no ordinary ruler—his power, by human reckoning, had stood above even SSS rank. Such strength could have ruled with cruelty, but instead he had chosen peace. He had chosen bonds over conquest, even daring to bridge the impossible gap between human and devil. And for that choice, he had been betrayed by his own kind, torn from the woman he loved, and reduced to this miserable shell.

Zero clenched his fists, the shadows around him rippling faintly as his mana stirred. This is what happens to those who stand against the order of power,

he thought grimly. This is what the world does to those who try to carve a different path. Something that he was trying to do using his parallel memory skill.
And yet... It was also proof of something else. That even in the darkest of places, even under betrayal and torment, willpower endured. Love endured. The King had held onto life long past its natural limit for this one moment, to pass his truth to Lilith. That truth was a spark, and now it rested in her hands—and by extension, in Zero’s as well.

He let his gaze linger on Lilith. Her sobs shook the room, her shadows curling tighter around her like a shield against her own vulnerability. He knew she might try to bury this pain, to smother it as she had smothered every unwanted emotion when she was under the devils’ control. But she couldn’t. Not this time. The grief was too deep, too raw.

Zero resolved then that he would not let her carry it alone.

He thought back to his own fractured self—the torture that he had to go through as a kid. He had endured the Tower, faced monsters, carried wounds that should have killed him. He had seen death too many times to be shaken by it now. And if his life had any meaning at all in this new world, perhaps it was this: to stand where others could not, to bear what others should not, so that someone else could keep moving forward.

He let out a slow breath, his eyes never leaving Lilith.

The King’s trust was not a crown, not a burden of leadership or kingdom. It was something simpler, more personal. It was, a father’s final plea: Take care of her. Protect her. Give her the chance I could not.

Zero accepted that vow, silently, with the iron certainty of his own soul. He would not let Lilith be consumed by despair. He would not let the devils who had broken her family break her again. He would see her through this, even if it meant fighting every shadow of the world itself.

His hand remained on her shoulder, steady and grounding. He didn’t need to speak to make his promise clear.

Inside, his thoughts crystallized into a single resolve:

No matter what comes, I will protect her. Not because a king asked me to, not because of fate or obligation. But because she deserves it. Because she has suffered enough. Because she is Lilith—and she will not be broken again.

And with that resolve burning quietly in his chest, Zero straightened his back, silently preparing for what lay ahead. The Devil King was gone. But his will, his truth, and his trust lived on—in Lilith, and in the shadowed guardian who now stood beside her.