Naruto: The Dawn of Uchiha Toru

On the night of the Nine-Tails, Konoha burns. Uchiha Toru awakens amidst blood and fire, discovering he has transmigrated into an orphan of the Uchiha clan. His parents are dead, the clan compound is under surveillance, and in the future, a destined night of clan extermination awaits. He makes no grand claims of saving the world; at first, he only wants to survive. Fortunately, he possesses an ability almost like a system: when he sees a jutsu, he can analyze it; when he sees hand seals, he can replicate them. From Fire Release to genjutsu, from the Flying Thunder God to self-created jutsus, from the Sharingan to the Rinnegan, he grows quietly in the shadows of Konoha, and under the pressure of fate, he gradually moves towards defection. After Orochimaru destroys Konoha, Uchiha Toru leaves the village and establishes an organization called 'Dawn'. They are not Akatsuki, yet they similarly collect tailed beasts; they want to prevent darkness, but they are also seen as a new threat by the world. The last survivor of the One-Tail's guardian family, an Ice Release ninja from the Blood Mist era of Kirigakure, a remnant of the Land of Whirlpools, a wandering samurai from the Land of Lightning... a group of people abandoned by the shinobi world, establish their base beneath the icy plains of the Land of Snow. When Akatsuki begins to move, the struggle for the tailed beasts sweeps the shinobi world; when the Fourth Great Ninja War breaks out, and the shadows of Madara and the Otsutsuki descend, Uchiha Toru finally understands: the so-called dawn is not the absence of darkness. It is someone in the darkness, still lighting the first flame with their own hands.