Naruto: Obtaining the Kamui Dimension at the Start

I was reincarnated as Sasuke Uchiha's twin brother, Sahiro Uchiha.

On the night of the clan massacre, our parents lay in pools of blood, and Itachi had already raised his blade.

Then the system activated:

Bond Simulator System bound.

Nearby linkable targets detected: Uchiha Itachi, the Masked Man.

I glanced at the choices and picked the last one without hesitation.

Link successful! Congratulations, Host. Ability acquired: Kamui Dimension - Basic Control.

The Masked Man froze. "How... how can you...?"

From that night on, I became the greatest wildcard in the entire shinobi world.

Link with Sasuke Uchiha, share his training progress, and gain Indra's chakra.

Link with Naruto Uzumaki and gain the Uzumaki bloodline.

While everyone thought I was just a lucky kid, I was already building an army of legendary shinobi projections inside the Kamui Dimension.

Years later, Kaguya Otsutsuki descended and looked down upon the shinobi world.

I opened my bond list and selected a name that had lain dormant for years.

Bond Projection: Hagoromo Otsutsuki at his peak. Summon.