Naruto: Rebirth of Naruto, Sign in at the Beginning of the Samsara Eye

With the regrets of the Valley of the End and the memories of all tragedies, Uzumaki Naruto was reborn as a baby. The sign-in system of all the worlds is activated - the Samsara Eye, the Reincarnation Eye, the Resurrection Coin... The power that you dreamed of in the past can now be easily signed in. When everyone still regarded him as a lonely demon fox, Naruto had quietly accumulated the power to subvert everything. In this life, he vowed to protect all those he cherished: to resolve Uchiha's fate, reverse his master's sacrifice, and regain the family warmth he should have had... However, just when he was secretly planning to change the night of the Uchiha genocide, the Uchiha leader Fugaku blocked his way, his eyes as sharp as a knife: "Uzumaki Naruto, where does the Sharingan fluctuation in your body come from?" Starting from saving loved ones, the story of rewriting the entire Naruto world begins.