(Transmigration + System + No Saintly Protagonist + Character Growth + No Crossing Parallel Universes)
After transmigrating into the Hokage world, he activated the Dojutsu Evolution System.
The System provided a recipe for a dojutsu potion. The potion could cure the blindness caused by overusing the Sharingan, relieve Byakugan fatigue, reverse hereditary diseases, and promote the reversion of bloodlines to their ancestral forms.
He used threats and enticements to recruit ten Uchiha clan members and cultivated ten Rinnegan.
He founded the War God Hall and trained ten students, including Might Guy, Kakashi, Senju Shentu, and Hyuga Chiyue.
He fought Jigen, rescued Uchiha Hikari, battled Madara the Dancer, and destroyed Black Zetsu.
He launched a campaign against the Otsutsuki on the moon, fought the Three Great Sage Lands, and wiped out Akatsuki members.
He battled the Otsutsuki god and won the final Hokage world.
