Kakashi awoke to a soft light filtering through his blinds, casting yawning shadows across his room. Sleep was once again fleeting, though it wasn't anything out of the ordinary. He was used to being chased by his nightmares. With a sigh, he hauled himself out of bed and stretched out his limbs.

Once dressed in his flak jacket, he felt more than ready to start the day. Today should be relatively simple, all things considered. The invasion complicated his day-to-day life for sure, but it left more than enough D-ranks for his team to take on. If he arrived early enough, he could call dibs on all the worst missions.

Approaching the Hokage's office, Kakashi immediately sensed something was off. The guards exchanged tense glances, and a knot tightened in his stomach. "Hatake," one of them said, his voice low. "Tsunade-sama is waiting for you."

"Thanks," Kakashi replied, forcing a casual tone as he ascended the stairs. Each step he climbed mirrored the anxiety within himself. Very rarely was he summoned directly like this. He flared his chakra before the door, bracing himself for whatever news awaited him as he entered.

Tsunade sat behind her desk, her expression serious, her hands clasped before her. A mask of professionalism overlaid with a thin layer of stress. "Kakashi," she said, her voice firm and clear. "Thank you for coming."

"What's going on?" he asked, his tone shifting to match her gravity. He could already tell this was not a routine meeting.

Tsunade took a deep breath, her eyes locking onto his with unwavering resolve. "It's about Sakura."

His heart sank. She was supposed to be his least problematic student. "What about her?"

"She was killed at the village gates last night," Tsunade stated, her voice blunt and steady, though the weight of the words hung heavy in the air. "Sasuke is missing, and we have reason to believe he may be involved in her death."

Kakashi felt as if the ground had fallen out from under him. "No. That can't be true." Denial surged through him, fueled by memories of Sakura's determination and strength.

"I wish that were the case," Tsunade replied, her tone clipped but authoritative. "The current assumption is that she confronted Sasuke when he was leaving. We found evidence that he was there. There was no struggle, but he made a choice."

Kakashi's mind raced, his heart pounding in his chest. "He wouldn't… He couldn't." It was as though he was a passenger in his own body. Sure, he had lost people before, but this was sudden and unexpected. "What happens now?" he asked, voice low, struggling to maintain composure.

He didn't really want to hear the answer. He wanted to yell, kick, and scream until his lungs gave out. He tried so hard to connect with his student, and in the end, it didn't matter. If his time as a Shinobi had taught him anything, however, it was to keep moving forward.

"I'm going to mark him as a missing-nin," Tsunade said, her gaze unwavering. "We can't let this go unpunished. If he's responsible, we need to find him and bring him back. He will be tried for murder of a fellow Shinobi."

"But are we certain he did it?" Kakashi countered, desperation creeping into his voice. "We need to be sure before we take such drastic measures.."

Tsunade's expression hardened, her voice resolute. "Kakashi, this isn't a small matter. If he killed Sakura, he poses a danger to the village. Normally, I would send out a small recovery team and bring him back quietly. However, the situation has escalated past what I'm comfortable with, and instead we'll go through the usual channels."

Kakashi swallowed hard, the gravity of the situation pressing down on him. "You're right, but he's not just a missing-nin. He's my student. We owe it to Sakura to understand what led to this."

Tsunade's eyes narrowed slightly, her jaw set. "I understand your loyalty, but we must prioritize the village's safety. If we let our feelings dictate our actions, it could cost us dearly."

Kakashi felt the weight of her words settle heavily on him, forcing him to confront the reality before him. "Fine," he said, his voice defeated, resignation creeping in. "Do what you need to do. If you believe this is the only way…"

"Thank you, Kakashi," Tsunade replied, her tone firm. "We'll gather a team to track him down. But I'm warning you to prepare yourself for what we might find."

As Kakashi left the office, the vibrant colors of Konoha felt dull and lifeless. The laughter of children echoed in his ears, a stark contrast to the void that had opened up within him.

Kakashi reflected on Sasuke—the boy who had chosen a path of darkness. The seal Orochimaru placed on him was a constant reminder of his need for power. But even so, to kill a fellow Konoha Shinobi? A teammate no less?

With a start, he remembered one more thing. How would he tell Naruto? The boy who had always fought for Sasuke's friendship. The words lodged in his throat, heavy with the knowledge that he would shatter Naruto's world. Would Naruto even be able to bear this?

Just as he turned to leave the training grounds, a chilling thought struck him: What if Sasuke had truly crossed a line that could never be uncrossed?

As the sun dipped below the horizon, casting long shadows over the village, Kakashi felt a sense of urgency rising within him. Two of his Genin were now gone, and his last was preparing for his trip with Jiraiyah. Most likely, he would be sucked back into Anbu, where he could once again hide from the looming failures that haunted him behind that porcelean mask.

But for now, he needed time to process.

The air was thick with tension as Sasuke approached the gates of the Sound Village. The overwhelming, ominous aura was a stark contrast to the bright sun shining overhead, causing a sharp anxiety to rake across his skin.

The journey to the village had been a long one, marked by sleepless nights and even more restless thoughts. After he had left Konoha, the memories of his teammates lingered like ghosts at the edges of his consciousness. The image of Sakura most of all seemed to follow him wherever he went. While the thoughts of Naruto and Kakashi disappeared with the rising sun, her presence never seemed to leave. He could still hear her voice ringing in his mind, demanding apologies and pleading with him to reconsider and return home.

Yet, with each passing day, those pleas became easier to tune out. The massacre weighed heavily on his heart— an evergrowing, burning desire for vengeance that pushed him forward. He had come too far to turn back now, even if doubt occasionally ghosted through his mind like a dying flame.

As he crossed the threshold into the village, a familiar figure emerged from the shadows: Kabuto Yakushi, with his ever-calm demeanor and calculating eyes. Sasuke felt a surge of apprehension as Kabuto regarded him with a subtle smirk.

"Sasuke," Kabuto greeted, his voice smooth. "Welcome to the Sound Village. Lord Orochimaru has been expecting you."

"Let's get this over with," Sasuke muttered, his tone cold and impersonal. The power he craved was finally within reach. Yet, as he walked, the faint presence of Sakura lingered just behind him, an impression that he couldn't shake. "You don't have to do this," her soft voice whispered in his ear.

He clenched his fists, trying to drown out her voice. "Of course I do," he hissed quietly.

"I hope that you get the power you need," she finally replied after a pause, her spirit shimmering with an ethereal emotion that only he could perceive. "I hope I didn't die for nothing."

Sasuke shook his head, and his remaining doubts with it. "I can't afford to be weak," he muttered, his heart heavy with something resembling guilt.

"I wanted to fight alongside you, Sasuke. I still do," she insisted, her tone filled with sorrow.

As they walked deeper into the center of the village, the buildings loomed ominously around him, towering and intimidating. He would never forget the day he had made the decision to leave Konoha, the way Naruto had tried to stop him, and how Sakura had looked at him with a mix of fear and determination. Their faces had been etched into his memory, but he had brushed aside their pleas, convinced he was doing what was necessary.

Kabuto led him through winding alleys and past guarded gates. The atmosphere grew heavier with each step, filling his senses with the scent of chemicals and the hum of machinery. The further they went, the more Sasuke felt unease crawl up his spine.

"Prepare yourself, Sasuke," Kabuto said as they approached the door to Orochimaru's lab. "Lord Orochimaru will want to discuss your future in detail. He has great plans for you. Remember to show him the respect he deserves."

"Don't do this," Sakura's voice pierced through his thoughts, filled with urgency. "This is your last chance. I don't want to sit here and watch you become a monster."

He felt a flicker of hesitation, a moment where he could almost envision a life without his revenge. But the thought of his clan's massacre filled him with rage and purpose. "I have to do this," he replied, his voice firmer but still low.

As they reached the entrance to Orochimaru's lab, the air felt charged with palpable energy. The door swung open, revealing a darkened room filled with intricate machinery and the scent of something acrid. The atmosphere shifted dramatically—a labyrinth of dark corridors and dimly lit rooms, a fitting home for the snake-like figure that ruled this place.

Orochimaru's figure awaited them, his eyes glinting with a mix of intrigue and hunger. "Ah, Sasuke," Orochimaru purred, his voice smooth like silk. "You've finally arrived. I've been waiting for you."

As the door closed behind him, sealing him away from the world he once knew, Sasuke felt the warmth from the outside fade slightly. He was alone now, on a path shrouded in darkness, but it was a path he had chosen. He had crossed the threshold, and there was no turning back.

"Your future awaits," Orochimaru said, drawing Sasuke's attention back to the present. As the conversation continued, Sasuke felt the weight of his choices settling heavily upon him. Though Sakura's spirit lingered, he could sense her distance growing, her voice becoming softer.

"You've come seeking the power I can provide. Starting today, we will make this a reality. Kabuto will bring you your new training schedule tomorrow. Today, we'll test your stamina. I want you to run laps around the training field. If you stop for any reason other than your legs giving out from under you, I will be punishing you extensively."

With each passing word, Sasuke felt the weight of his choice closing in around him. He had left the Leaf, and now he would face the consequences, whatever they may be.

"Yes, Sir." He grated out between his teeth. "I look forward to working with you."