Ten Years as a Torture Ninja in the Konoha Anbu!

"A unique reimagining of the Naruto universe where ninjutsu meets the laws of physics. It's the journey of a protagonist who masters the shinobi world using scientific logic instead of just raw willpower."

One year. That is all the time I have left. Moro thought he had escaped the clutches of death after being slaughtered by the Phantom Troupe’s most ruthless executioner, Feitan. But when he opens his eyes, he is back in the rusted cage where his journey first began—one year into the past. However, reincarnation isn't a free gift. With a mysterious "Death Node" engraved upon his heart and a leveling system that mirrors a Nen ability he once feared, Moro is forced into a race against fate. To survive past June 22, 1997, he must do the impossible: Hunt down and kill the monster who murdered him. In a world of Nen, Spiders, and shadows, Moro must climb the levels or face a final, permanent end.