The chamber was silent, save for the faint crackling of residual chakra dissipating into the air. The inscriptions on the walls flickered weakly before fading, their purpose fulfilled. The atmosphere was dense, thick with something ancient, something unfathomable.
Tsunade, standing across from Ryūsei, felt it deep in her bones—this wasn't the same person who had stood before her moments ago. His presence had changed. It wasn't just stronger. It was absolute.
For the first time in her life, she understood what it meant to stand in the presence of something beyond mortal comprehension.
A Transformation Beyond Limits
Ryūsei stood still, his breath even but deliberate, as if testing the very nature of his existence. His chakra flowed differently now—not wild or uncontrolled, but refined, pure, complete. He lifted his hands, flexing his fingers as golden-white energy pulsed subtly around him.
Tsunade's sharp gaze locked onto him. "What happened?"
His voice, though familiar, carried an undertone of something deeper. Something ancient.
"I have changed."
Tsunade's golden eyes narrowed. "Explain."
Ryūsei exhaled, his expression calm, but beneath that calm was something far more profound.
"My body has reached the absolute purity of the Ōtsutsuki."
Tsunade's heart skipped a beat.
He continued, his tone unwavering. "The bloodlines inside me—Hyūga, Uchiha, Senju, Uzumaki, Kaguya, and the Moon Ōtsutsuki—they've fused completely. I no longer possess separate abilities from different clans. Instead, they have merged into a single, complete, and refined existence."
Tsunade took a slow step forward, analyzing him carefully. "…What does that mean for you?"
Ryūsei looked down at his hands, golden chakra flickering around them like celestial fire. He clenched his fingers into a fist, and the energy pulsed in response. It obeyed him in a way chakra never had before.
"I am no longer an individual bound by a single bloodline. My existence has been rewritten. My chakra has become something beyond what it was before." He looked up, locking eyes with her. "I am an Ōtsutsuki in full form—without weakness, without fragmentation."
Tsunade remained silent for a moment, absorbing the weight of his words. Then, slowly, she exhaled. "Your eyes… they've changed."
Byakugan's Ultimate Purification
Ryūsei blinked, and for the first time, he truly felt the change in his vision. His Byakugan, once milky white, now shimmered with a faint golden glow, like sunlight trapped within its depths.
Tsunade's eyes widened slightly. "Your Byakugan… It's evolving?"
He nodded. "Yes. It has purified itself. What I see now… it's beyond what I ever could before. The depth, the clarity—it's as if I've surpassed even the Ōtsutsuki's original vision."
The room quivered under an unseen force as the transformation continued.
And then—the unexpected occurred.
The Death and Rebirth of the Sharingan
A searing pulse erupted from within Ryūsei, spreading through his veins like liquid fire. His Eternal Mangekyō Sharingan, the prized inheritance of the Uchiha, began to change.
At first, it melted—shifting into molten gold, expanding, reshaping. The black and crimson hues of the Sharingan dissolved completely, giving birth to something new.
A Golden Rinnegan.
Tsunade took a step back in shock. "That… that's not normal."
Ryūsei's expression remained calm, but inside, he was analyzing the change with absolute focus.
"My Sharingan… no, my Mangekyō Sharingan has been eliminated. The bloodline itself has been rewritten." His gaze turned to her, his golden Rinnegan gleaming under the dim light. "The divine technique I once held—God of Destruction—has transferred itself into this new power."
But the evolution didn't stop.
The Golden Rinnegan pulsed again, its form shifting further. The golden glow intensified, and then—six black magatama formed within its irises, encircling the pupil.
Tsunade instinctively clenched her fists. This was something different. Something new.
And then, the final change occurred.
The Awakening of the Pure Eye
A third eye opened on Ryūsei's forehead, its very presence shaking the chamber. Unlike the Rinnegan, unlike any dōjutsu before it—this eye was different.
It was crystalline. It was pristine.
It was the Pure Eye.
Tsunade took a sharp breath, her heart pounding. "What… what is that?"
Ryūsei slowly raised a hand to his forehead, feeling the presence of the new eye. His expression was unreadable.
"…The Pure Eye," he said at last, his voice quiet but filled with understanding. "A lost power—one that even the Ōtsutsuki have failed to maintain in their evolution."
Tsunade could feel it, even from where she stood. The divinity in his presence had crystallized. He wasn't just stronger—he was something else entirely.
As the glow of his transformation finally settled, the chamber returned to silence.
Ryūsei closed his eyes for a moment, centering himself. When he reopened them, the six-magatama Rinnegan gleamed in one set, while the golden Byakugan shimmered in the other. The Pure Eye on his forehead remained still, yet its existence alone sent tremors through the very fabric of chakra itself.
Tsunade exhaled, releasing the tension she hadn't realized she was holding. "So… what now?"
Ryūsei turned to her, his expression calm. Then, with a faint smirk, he said:
"Now? Now, I find out what these eyes can do."