Aiko Hoshizaki had never been this far from the Academy's walls. The forest loomed around her like dark velvet, shadows pooling under gnarled branches. Every footstep on the cracked stone path echoed as though the world itself held its breath. She had trained for missions like this, but nothing could have prepared her for the weight of the relic she was about to recover.
Gojo Satoru had been uncharacteristically serious that morning. "This isn't a training exercise," he had said, leaning against the doorway with his usual grin that didn't reach his eyes. "One wrong move, and you're toast. Yuji's with you, but don't rely on him to save your skin."
Aiko had swallowed, nodding. She had known Yuji Itadori for only a few months, yet his presence comforted her. He moved with an easy confidence, cracking jokes even in the face of danger, but Aiko could see his tension when he glanced at the relic's container. He did not know what awaited them any more than she did.
The path ended at a clearing, where a decrepit shrine crouched beneath a canopy of twisted trees. The air shimmered with an unnatural heat, and the scent of decay clung to her skin. Aiko's hand trembled slightly as she reached for the relic's container. It hummed faintly, a pulse she could feel in her chest.
"Careful," Yuji warned. "Even touching that thing—" He stopped, eyes widening as the shadows shifted. Figures emerged, grotesque and contorted, skin slick and eyes glinting with malice. Fléaux. Guardians of the shrine. Their moans were low, like the growl of starving beasts.
Aiko took a step back, heart hammering. Her training kicked in, reflexes sharp despite the fear. She summoned a surge of cursed energy, fingers glowing with faint light. The closest fléau lunged. She twisted, dodging, and struck with precise pressure points she had memorized from months of drills. The creature fell, but more surged from the darkness, relentless.
Yuji moved beside her, fists glowing with cursed energy. He was fast, landing blows that split bone and sinew. Together, they fought, their movements synchronizing despite the chaos. Yet the relic hummed louder, vibrating against Aiko's chest. It was no longer just an object—it was alive. It whispered promises she could not hear fully, hints of power and something else, something familiar yet terrifying.
Her vision blurred. A shadow detached from the darkness, a form that made her stomach twist. Two eyes, golden and merciless, fixed on her. Sukuna. The King of Curses. He had not been summoned—he had been waiting. And he was smiling.
Aiko froze. He stepped closer, the world narrowing to the heat of his gaze and the pulse of the relic beneath her hand. She felt something inside her shift, a thread loosening in her mind. Fear curled with fascination. Every instinct screamed to resist, yet every fiber of her being ached with a pull she could not name.
"You're far too soft," Sukuna said, voice smooth and cutting. "But perhaps… I can shape you."
Her knees weakened. She had trained to fight fléaux, to face horrors she had only read about. But this—this was different. He did not attack. He merely existed, and in his existence, he tore at her.
Yuji's shout brought her back. "Aiko! Move!" He pulled her sideways, and she landed on uneven stone, cursed energy flaring as she retaliated against a nearby creature. The clash was brief but brutal. When she looked up, Sukuna was gone.
Yet the relic's hum had changed. Warmer, darker. Closer. She could feel it pressing against her, insinuating itself into her thoughts. She staggered, hand on her chest. The world felt suddenly heavy, every shadow whispering her name.
"Are you okay?" Yuji asked, concern cutting through the adrenaline. But Aiko could not answer. She had glimpsed the predator behind the relic. She had felt the first pull of something she could not resist. And in that moment, she understood the mission was no longer about retrieval. It was about survival—of her body, her mind, her soul.
The shrine loomed silent once more, but she knew it would never truly be quiet. Sukuna had marked her, subtly, yet unmistakably. The relic had found its secondary vessel. And she had just stepped into a world where fear, fascination, and power twisted together—where she would not remain unchanged.
Aiko's chest tightened. Something had awakened inside her, something that could not be unawakened. She swallowed hard, gripping the relic, feeling its pulse sync with her own. The forest waited. The fléaux waited. And Sukuna… he waited patiently, like a king watching his pawn.