Naruto : The ultimate Troublemaker

His left eye became a Tenseigan again, glowing with a deep blue and exuding a divine aura.

His right eye blazed into a Rinne Sharingan, concentric patterns of incandescent red slowly appearing.

Shibai, though stunned by what she saw, regained her composure.

Shikai got back up, his body radiating. His black skin cracked, revealing a golden light emanating from the fissures. Slowly, five distinct crosses began to glow on his body.

Yang Stigma, A cross located on his fifth cervical vertebra, absorbing and nourishing the Senju and Uzumaki chakra.

Yin Stigma, A cross on his thoracic vertebrae, manipulating the Uchiha and Yamanaka chakra.

Moon Stigma, A cross on his left arm, containing the Hyūga and Toneri chakra.

Jūbi Stigma, A cross at the center of his chest, serving as a receptacle for the chakra of the nine Bijū.

Sage Stigma, A cross on his forehead, focusing the Senjutsu.

Each stigma pulsed with a unique light, merging into a symphony of divine energy. Two additional horns appeared on either side of his head, joining the three already present, forming a crown almost royal. His silhouette was that of a god of war.

Shikai clenched his teeth, his body burning under the intensity of the stigmas. Every movement seemed to crack his skin further, but he held on.

"Shibai, you've lost everything. And now, you're going to join them."

Shikai leaped forward, traversing space in an instant thanks to Hiraishin. His speed surpassed that of light, and his fist, imbued with Senjutsu, crashed into Shibai. She stepped back under the impact, but smiled.

"You're truly fascinating, Shikai. Unfortunately for you, that's exactly what I wanted."

Shibai opened her arms, welcoming him into an unexpected embrace. Before he could react, she pulled him close, her divine chakra mingling with his.

"It was my plan from the beginning," she murmured in his ear. "To have you here, in this dimension, away from everyone else, for eternity. Or to die together."

Shikai's eyes widened as he understood the scope of her words.

"You..."

She placed a gentle hand on his cheek, a melancholy smile illuminating her face.

"I've been watching you for so long, Shikai. I knew you would come. You're exactly as I thought."

Before he could respond, she kissed him.

*Boom*

A burst of light erupted, gradually disintegrating their bodies.

As he felt his existence fading, Shikai looked Shibai in the eyes.

"In the end," he murmured, "I'm no better than you, Shibai. I've killed, manipulated, caused genocides... And all of this has led to my own destruction."

Shibai inclined her head slightly.

"Perhaps it was inevitable, Shikai. We are what we are. But why do you continue to call me Shibai. My consciousness hasn't replaced hers yet." She said.

Shikai closed his eyes, a sad smile on his lips.

"Maybe in another world, we would have lived a simple and happy life. What do you think.... Izumi?"

At the sound of this name, Izumi, formerly Uchiha, let out a slight laugh.

"I think so too, Shikai. Maybe one day... somewhere."

Their bodies disappeared in a burst of volatile ashes, leaving the dimension silent and empty. The cycle of vengeance and destruction had ended, taking with it the two souls bound by a destiny of hatred and revenge. After all, to avenge oneself is to bear one's own karma and end up like them.

The light faded, and everything returned to darkness.

***