Shinwa Densetsu no Eiyuu no Isekaitan - Volume 2, Prologue

Shen Ran transmigrates to a fantasy world and becomes a disciple of the Empyrean Sword Sect. Problem is, everything about him is ordinary— ordinary talent, ordinary temperament, ordinary life… In this cruel world where cultivation talent determines how far one could go, this means that Shen Ran’s future can be seen at a glance. Banished to the servant quarters as a servant disciple, his daily grind is to attend to mundane chores which will go on until he dies of old age a hundred years later.

Then he comes across a narrative modification system which makes it possible to rewrite entire lives! An avid reader of online novels in his previous life, Shen Ran relishes the chance to read the narratives of everyone and everything and alter them. The narratives modified by him will become reality!

This is the story of how he transforms his ordinary life by editing his narrative and going on to cultivate the Dao, handle calamities, and rule the ages. And he is limited only by his imagination!

When I opened my eyes, I found myself in a game where heroes and villains prevailed. I was told I would be granted one wish if I clear the game. The protagonist, who received a growth cheat that allows you to steal his stats by killing an opponent. He kills villains to grow up, but for some reason people mistake him for a “dark hero.” [Story-oriented]

A decision can destroy the sun, moon and stars. A finger can kill the Heavenly Overlord. While chatting, the Heaven and ten worlds can be annihilated.

A poor little kid walks out from a remote mountain area while holding the Nine Dragons and the Incredible Cauldron. With a control over the time and space eternally, he embarks on the Path to God where he defies the odds of the boundless universe gaudily by fighting against royalty and clashing with the legendary generation.

When she woke up, Lake returned to the classroom of the third year. The classmates were in class with swords and sticks, and the teacher became a female Taoist.
The little fat man in the back seat, how to put two big hammers under his chair.
Rick found this to be a global era!

- Description from Uukanshu (translated)