After returning to his quarters, Kaito stared at the container on the table, the swirling energy within casting faint shadows across the room. The essence of the Three-Tailed Beast pulsed inside, alive yet contained, like a storm bottled within glass.
His mind churned with indecision.
"What do I do with it?" he muttered, the words barely audible over the sound of his heartbeat.
The logical path was clear: erase the consciousness of the beast, consume its essence, and harness its power entirely. But logic collided with caution. His system had warned him—eliminating a tailed beast entirely would ripple through dimensions, alerting forces beyond his strength. Until he ascended to their level, confrontation with such entities would spell disaster.
"Patience," Kaito murmured, clenching his fists. His thoughts turned inward, replaying fragments of knowledge: the sacred tree, the cycle of chakra, the lineage of bloodlines, the evolution of power.
A sudden thought struck him. "The tailed beast's chakra... and the Sharingan."
His voice grew firmer, filled with newfound conviction. "If the Divine Tree's fruit could elevate the Otsutsuki, then why can't the chakra of a tailed beast, an extension of that same power, refine our bloodlines?"
The idea took root, burning brighter with each second.
And then, like a dawn breaking after a stormy night, his gaze softened. There was someone who deserved this chance more than anyone else.
Izumi.
Kaito's lips curved into a rare smile. His sister had always been relentless, pouring every ounce of herself into her training, determined to be strong enough to stand beside him. Her three-tomoe Sharingan was impressive, and her skills already rivalled elite shinobi, but Kaito knew how much more she wanted—how much more she could achieve.
"It's perfect," he whispered. "She'll be in a secluded forest, Izumi's blade danced through the air, slicing invisible foes with precision and grace.
The secluded training ground echoed with the sound of clashing steel. Izumi's blade danced in the moonlight, slicing through the air with precision and grace. Sweat glistened on her brow, but her strikes did not falter. Each movement was sharper, faster, as if she were trying to outrun her limits.A sudden whistle broke her rhythm. Three kunai shot toward her from impossible angles. Without hesitation, Izumi's sword moved in a blur, deflecting each with pinpoint accuracy.
"Impressive," came a familiar voice from the shadows, warm yet teasing. "Even a seasoned shinobi would struggle with that throw."
Izumi's eyes lit up, and she spun toward the voice. "Kaito nii !"
In an instant, she was in his arms, her exhaustion momentarily forgotten. Their bond was unshakable, forged through years of shared hardship and mutual devotion.
Kaito ruffled her damp hair with a fond smile, though his eyes flickered with concern. "You've overdone it again, haven't you?"
Izumi pouted, catching her breath. "I have to. I want to be strong enough to stand beside you."Her words struck something deep within him, and for a moment, Kaito was silent. Finally, he cupped her face, brushing away the sweat with a gentleness that belied his power."You won't need to push yourself so hard anymore," he said softly. "I've found a way to help you grow stronger—faster and safer."
Izumi's eyes widened, hope flickering to life. "Really?"
He nodded, his expression firm. "Come with me."
Back in Kaito's quarters, Izumi's gaze was drawn to the container, its glow captivating. "What is that?" she asked, stepping closer."The essence of the Three-Tailed Beast," Kaito explained. "But for you, I have something even greater."
Izumi blinked, confused yet intrigued. "Greater?"
Kaito's voice grew quiet but firm. "The Ten-Tails' incomplete chakra. It's a power unlike any other, and it's under my control. If refined properly, it can elevate your Sharingan to a level never seen before."
Izumi's breath hitched. "You're not turning me into a jinchūriki, are you?"
Kaito shook his head. "Never. You'll remain yourself. The process will be gradual, and I'll guide you every step of the way."
Her determination flared. "Let's do it."
With a nod, Kaito activated the seals binding the Ten-Tails' chakra. A faint glow emanated from his hand as tendrils of energy began to coalesce, writhing like serpents in the air. Izumi knelt, steadying her breathing, her hands forming the seals he had taught her.
The chakra was overwhelming—raw, wild, and relentless. As it entered her system, Izumi's body tensed, her cells screaming in protest. But she held firm, wrapping the foreign energy in her own chakra, taming it with an iron will.
Minutes stretched into an eternity. Kaito watched her intently, ready to intervene at the slightest sign of danger. But Izumi endured, her face etched with both pain and determination.
Finally, her eyes snapped open. The crimson glow of her Sharingan was brighter, sharper, and more alive than ever before.
Izumi's voice trembled with awe. "I... I feel incredible."
Kaito's lips curved into a rare smile. "How much stronger?"
She flexed her fingers, sensing the newfound power coursing through her. "It's like I've gained months of training in an instant. And my Sharingan... it's as if it's awakening to something greater."
Kaito placed a hand on her shoulder, his voice steady. "This is only the beginning. Together, we'll reach heights no one has ever imagined."
For the first time in years, Kaito felt a flicker of true hope—not just for himself, but for Uchiha's future. As he looked at Izumi, her Sharingan blazing with potential, he knew that their path forward was brighter than ever.