In Naruto: Reborn with a Chat Group - Chapter 168 - 166: WHY THE HELL IS MY FOX SO GRUMPY?

This is a story of a transmigrator leading a small martial sect to rise. It is a fantasy tale set in a world of ordinary people cultivating and vying for supremacy, without the assistance of any system.

A mecha otaku is reincarnated into another world as Ernesti Echevalier (Eru). In this world there exist huge humanoid weapons known as Silhouette Knight. Dreaming of piloting those robots, Eru, with childhood friends, Archid Walter and Adeltrud Walter: together they will aim to become a Knight Runner, pilot of Silhoutte Knight.

After transmigrating into a weak noble body, Marvin discovered that he was familiar with the world, this was the game he played in his previous life and… Damn! He only had six months before the Great Calamity!