Naruto: My Brother Is Admiral Kizaru

[Naruto World + No System + Genius Protagonist + Starts as the Nine-Tails' Jinchuriki]

During an intense match in Naruto Mobile, Wang Mo is struck by his opponent's Uchiha Reflection for 'true damage.' The blow does more than break his defenses in the game-it turns his entire life upside down. After a moment of shock and dizziness, he finds himself transported to the world of Naruto, reborn as Menma Uzumaki, the younger son of Minato and Kushina.

Thus begins a legendary life in which he and his older brother, Naruto Uzumaki, share the fate of being the Nine-Tails' jinchuriki. Growing up and training side by side in a ninja world brimming with passion and danger, they will combine a modern mindset with traditional ninjutsu to confront the formidable Akatsuki and the mysterious Otsutsuki clan.