Naruto: Thrown Into the Leaf - Chapter 32 - 31: The Otis Armory Project

Nascent Soul True Monarch failed in his celestial tribulation and returned to his student days.2013, when the mobile internet was just emerging, amidst the surging tides of the era, a cultivator's daily life.

It was the best cheat in the vast and ancient world!Its origin could be traced back to Trailokya and it was the highest law!…Three years ago, three living creatures fell from the sky. King Monroe of West Ridge got one of them and he conquered six countries to unite West Ridge.Wu Zhao of the Big Zhou Dynasty in the Southern Wasteland got another one of the living creatures. She dominated all 19 clans there and became the top figure in that region.Owen Bertram also got one of the living creatures. Yet three years had passed and he was still a nobody. Nothing had changed for him.However, he soon realized that the tiny loach that he got three years ago was actually the biggest cheat in the world.Moreover, it led him on a non-stop journey of becoming the biggest winner in life!

Possessed an extra with a single rune.After obtaining 7 runes directly according to the original Hidden Piece…A fraudulent rune called [Rune Hunter] was created.

Zheng Tan somehow returns to the year 2003, turning into a black cat. Picked up from a rubbish heap by the Jiao family, he is given the name “Charcoal”, and so begins the life inside Professor Jiao’s family. Zheng Tan remembers that he was once a person, but currently his body is that of a cat. He has no way of speaking the human language, but can understand it, and even retains the thinking and IQ of a young 20 year old youth. Read along as he adapts to this new world, and somehow tumbles from a group brawl to catching a thief.

- Description from Novelupdates