Shinwa Densetsu no Eiyuu no Isekaitan - Volume 6, Prologue

Betrayed. Murdered. Forgotten. Orion Vale, the strongest warrior and rightful heir, fell under his own beloved's blade—Shia, now the Empress of Eldora. Yet, fate has not finished with him. Reborn with memories of his previous life, he will crave a new path, rising through cultivation, swordsmanship, and magic. But as he seeks revenge, whispers of a larger conspiracy emerge. Was his death betrayal… or the cruel design of destiny? In a world where power is reign, Orion will create his own destiny.-------------Give a try first twenty chapter then judge my work.

An ordinary student, a wretched peeper, a cowardly teenager with a kind heart. In a terrorist attack, he inherited the knowledge of countless elites, embarked on a path of God Jagged Tu…

He is an artist!

He is a mathematician!

He is a psychology Doctor!

He is a master of fighting!

In fact, he is a man

Taken off raw site:

A wretched, dirty young man is working during the summer when he was caught up in a mysterious explosion. After that explosion, the young man is then left with the memories and knowledge of dozens of the world’s experts.

He has changed, his heart has become cold, iron-blooded. He became a killing machine, his mind turned mechanical, calculative. Everything goes according to his plans and calculations!

In this magical, slaughterous world, a door is opened for him…

- Description from Novelupdates

Qin Fei: “Sorry, fried silkworm cocoons are sold out.”
Miaojiang Yanshi seriously face: “Can gold silkworm cocoon be fried?”
——
Qin Fei: “The octopus is also sold out.”
The Octopus demon is calm and stretches out one leg: “just take it.”
——
Qin Feihan Yan: “Do you still have some clams?”
The diners with children were so scared that they lost their faces and fled.
——
There is a snack bar in the outside world.
There is no high-priced egg fried rice here.
No more expensive exaggerated ingredients,
Only delicious street food,
But it does not prevent it from conquering one after another picky taste buds.
[The text is more than a daily comparison, experience life. 】

- Description from Uukanshu translation