This is really not mechanical ascension - Chapter 1398 - 712: Did the Eternal Abyss Retreat?

Surgeon Guan Ryo Is reborn in Naruto’s world! Enjoy his trip as he uses his knowledge of the story to find his path in this troubled world and eventually stand at the top of Konoha!

This is my first original novel, it may be bad, but this is all in my mind and imagination. (Warning!! There will be an Incest genre) Thank you o⁠(⁠(⁠*⁠^⁠▽⁠^⁠*⁠)⁠)⁠o(oh yeah I forgot, this cover is not mine, I just edited it, if you feel you own it and don't like me using it, please tell me)

A Count’s Daughter who lost in the running to become the Second Prince’s fianceé, Camilla. The Prince chose a Baron’s daughter as his fianceé, and the world blessed the two’s love as fated. On the other hand, Camilla who was tailored and elevated as the love’s villain in the end, as punishment she was made to marry a terribly fat and ugly man――called『Toad of the Swamp』from his appearance, a lord of a remote region named Alois.

All the Humans from Earth were suddenly transported into a new world called Celestial World. No one knew the reason why nor what the purpose was all about. They were suddenly transported without any warnings or signs and were forced to live in a mysterious and unfamiliar new world.For 50 years, Humans lived in endless suffering and torment. They were all forced to run from one place to another or else they would be enslaved by other Foreign races that had long been living in the Celestial World.Fortunately, the Human race was finally able to slowly develop its strength and power in the Celestial World through the sacrifice of countless Humans after 50 years. However, it was mysteriously Fated not to last long as an unknown power suddenly started doing everything to destroy Humanity's Kingdoms and Empires.A young man by the name of Leo Heart had his Fate suddenly rewritten by some unknown power to stop this unprecedented doom of the Humans after a Red Cube, that the Heart Noble Household had been keeping as a Family Heirloom from the very start of the Human Race existence in the Celestial World, suddenly jumped up and embedded itself into his right palm.A world full of Mystery in which Magic and Mana had become every race's foundation of existence. A young man who had lost his family for the Human Race's existence has his Fate unexpectedly rewritten after such an encounter.But, would it be enough to stop this so-called unprecedented doom?Would the Human Race's existence be saved by Leo from the unknown yet powerful existence?Or would the Humans sadly become nothing but a mere history in this new world?Note: The art of the book cover is not mine. All the credits go to its rightful owner...