In the alternate timeline of Kivotos, the city lay in ruins. Crumbling buildings, shattered streets, and a thick, oppressive darkness filled the air. The faint hum of void energy clung to the remnants of the world, as if the very fabric of reality was slowly decaying. Amidst the devastation, a figure stood tall, casting a long shadow over the fallen world.

Yume, but not the Yume anyone remembered. Her once bright, vibrant presence was gone, replaced with something far darker, more dangerous. Her green hair now had a sickly glow, pulsating with an unnatural hue. The light that once danced in her eyes had faded, leaving only a hollow golden emptiness, as if her soul had been consumed by something far greater than human sorrow.

Her Abydos uniform was gone, replaced with a tattered black dress that seemed to absorb the light around her. A deathly veil draped over her head, the symbol of mourning she refused to acknowledge. Above her, the fractured halo-once a symbol of status and respect-now resembled a twisted sigil, constantly shifting as if resisting the boundaries of the world.

On her back, she carried two weapons. The AR-500, a rifle infused with hatred and the essence of her fury. The other was her massive scythe, Hatred, a dark manifestation of her deepest rage. Its form constantly shifted, dripping with void energy, feeding off her emotions as if the weapon itself were alive.

Before her stood Sensei, towering in the shadow of the destroyed world. A massive, fully black figure with empty, white eyes. The only part of him that seemed human was the faint presence of his voice.

"You still refuse to listen, Yume," Sensei said, his voice resonating with a deep, unsettling calm. "This isn't the way to fix things. Destroying everything... it's not going to bring you peace."

Yume tilted her head to the side, a cruel smirk curling at the edges of her lips. Her voice was light, mocking. "This isn't the way? Oh, Sensei, you're such a fool. This is the game, and the game never ends." Her finger tightened on the trigger of her AR-500, the weapon pulsing with void energy as she aimed it directly at Sensei. Without hesitation, she pulled the trigger. BANG!

The bullet tore through the air, the sound reverberating like the final knell of a dead world. Yet, Sensei did not move. The bullet stopped inches from his face, caught by an unseen force. He remained silent, his gaze unwavering.

"You're weak," Yume spat, her voice dripping with contempt. "Human. You always have been."

Just as she was about to unleash another round of destruction, something stirred in the air. Nyx awoke from her sleep, her heart racing, her body drenched in sweat. The dream had felt so real. The destruction, the hatred-Yume, transformed into something monstrous, taunting Sensei about his human limitations. The moment felt like a warning, a signal from another world, another timeline.

Confused and shaken, Nyx tried to push the dream from her mind. But there was something lingering, something she needed answers for. She hurriedly made her way to Sensei's office, hoping he might have an explanation for what she had seen.

"Sensei," Nyx began, her voice trembling slightly. "I... I had a dream. It was about Yume."

Sensei's face hardened. "Yume?" he repeated, his tone growing cold. "Yume is dead, Nyx. There's no need to concern yourself with her."

"But... but I saw her. She was alive, standing in a ruined Kivotos. She looked... different," Nyx insisted, her mind racing with the vivid details of the dream. "Her hair, her eyes, her whole being... she wasn't the Yume I remember. It felt like... something else was controlling her. Like she was consumed by something."

Sensei remained silent for a moment, his eyes narrowing as he processed the information. "What did she look like?" he asked, his voice steady.

Nyx described the Yume she had seen in the dream-her sickly green hair, her golden, hollow eyes, the fractured halo. "And she had two weapons-an AR-500 rifle and a huge scythe... it was like she was... a different version of herself. But stronger, much stronger."

Sensei's expression darkened. "It sounds like the Chroma might have had a hand in this. It could be a corruption from a different timeline, one that was altered. A new timeline, perhaps."

"Chroma?" Nyx frowned. "It didn't feel like Chroma. The energy was different... darker. More... alive."

"Then it's something beyond Chroma," Sensei muttered under his breath. "A force of destruction that transcends even that. Be careful, Nyx. This may be part of something much larger."

Back in the shattered timeline of Kivotos, Yume stood alone, staring into the endless void of destruction she had created. She felt something shift in the air, a presence she recognized, but couldn't quite place. Slowly, she turned, her scythe raising defensively, her AR-500 gripped tightly.

Through the haze of void energy, a figure appeared. A familiar, yet distorted silhouette. Shiroko Terror.

Yume's lips curled into a sardonic grin. "Well, well... look who decided to show up. Shiroko Mistakes, come to tell me how I failed? Tell me I should stop this? Tell me how much better you think you are?"

Shiroko's eyes narrowed, her expression one of quiet determination. "You're just like me, Yume. You're destroying everything because you can't let go. You failed to save Hoshino, just as I failed to save my world. But I moved on. You should, too."

Yume's expression twisted with rage. "I'm nothing like you, Shiroko. I want this. I want to erase it all. Let it burn! Let it all burn!" She raised her scythe high, ready to strike. "And I'll make sure you're a part of it!"

Without warning, Yume charged forward, her scythe cutting through the air with terrifying speed. Shiroko leapt back, narrowly avoiding the strike. Her black assault rifle appeared in her hands, raised and ready.

The battle between the two Terrors was a cataclysmic clash of anger and destruction. Yume's scythe sliced through the air like a blade of chaos, its void energy cracking and distorting reality with each strike. Shiroko fired her assault rifle in quick succession, each bullet infused with a destructive force of its own.

The ground trembled beneath them as explosions rocked the landscape. Yume's relentless attacks tore apart buildings, while Shiroko skillfully dodged and countered with her rifle, the cyan glow of her bullets lighting up the darkness.

"You'll never win, Yume," Shiroko called, her voice filled with a mix of regret and determination. "Your hatred will only destroy you."

Yume's laugh echoed through the ruins, a manic sound. "I don't care! I'll burn it all! I'll burn Kivotos to the ground, timeline after timeline, until there's nothing left!"

The battle raged on, neither side willing to yield. But as the fight reached its peak, Shiroko's eyes flickered with a hint of something more-the power of Chroma. She activated it, using the energy to escape the crumbling world, slipping through the fabric of reality.

"Next time, Yume," Shiroko's voice echoed as the battlefield began to fade. "I'll stop you."

Yume stood alone amidst the destruction, her breathing heavy, her rage still burning. "Next time..." she whispered, her voice filled with a dark promise. "I'll make sure there is no next time."