Yamato-29
No leash. Only oath. On the night of the Nine-Tails, Minato saves Konoha by splitting the beast: its body is sealed into Naruto, while its chakra is shared by his twins, Menma and Narumi-the village's darlings. Neglected but not broken, Naruto becomes a cold, brilliant self-taught prodigy. He studies sealing arts, reverse-engineers his father's space-time style, and forges his own path: Sky-Tag, Dragon Gate, and a secret dragon summoning pact bound by oath, not chains.
There is no Uchiha massacre; Itachi and Shisui live in Konoha's light, and Sasuke grows into a rival by merit, not blood feud. Family ties begin strained and heal slowly-no instant forgiveness, only work, honesty, and time. Power rises gradually: from precise tactics and sealing tricks to breathtaking flashes worthy of a new legend.