Yamanaka Kei harbors an extraordinary secret—memories from a previous existence—in the shinobi realm of chakra and ninjutsu. After nearly two decades of dormancy, a cryptic system suddenly awakens within him, unlocking unprecedented possibilities. As the Third Great Ninja War threatens to engulf the world, Kei must master his newfound system's mechanics while traversing the perilous landscape of the shinobi world. Through mentoring his disciples and reviving bonds with former allies, he grapples with the profound responsibility of wielding such formidable power and its potential to reshape destiny itself. Among his system's mysterious traits lies a tantalizing possibility: the ability to breach the barriers between dimensions and traverse alternate worlds. ---------- ---------- I do not own Naruto. All original rights belong to the creator: Masashi Kishimoto. Warnings: - AU - very powerful MC - system - other worlds