Naruto: The Will of Fire (Rated M)

Reborn into the brutal world of Naruto, Kenji Sato expected a legendary bloodline or a god-tier Dojutsu. Instead, he awakened the Shameless Sage System—a cheat code that doesn't reward hard work, but rewards absolute degeneracy. In a world defined by war and death, Kenji realizes that dignity is a luxury he can't afford. Want the Rinnegan? You’ll have to streak through the Hokage’s office. Need S-Rank strength? Better prepare your best double-entendres for the nearest Kunoichi. Armed with a "Max-Level Transformation Jutsu" and a philosophy that would make Jiraiya blush, Kenji sets out to rewrite history. From corrupting Naruto into his first disciple to traumatizing Sasuke with the "Secret Backdoor Technique," Kenji turns the shinobi world upside down. He isn't the hero Konoha wanted, but he is the chaos they deserve. Witness the rise of a civilian orphan who grinds his way to the top, proving that in the face of destiny, sometimes the strongest weapon is a lack of shame. This isn't just a ninja story; it’s a masterclass in "Culture." — Description from novelcodex.org