The Villain Has Something to Say - Chapter 85 - The Essence of Karma! & The Master and the Book (I)

Through a mysterious portal, Chen Jin arrived at this strange place – a post-apocalyptic world where civilization had been destroyed.

Consequently, he found –

A piece of metal scrap
A robot trash collector
A battleground
A city
A ton and more of gold
A copy of high-tech documents
A…
In short, Chen Jin found a planet.

- Description from Novelupdates

Xuanqian Continent, where sects stood in great numbers and experts abounded.The youth, Zhou Heng, with a mysterious black Broken Sword in his Dantian, emerged from Origin Stone Town and fought his way to claim a piece of the world in this grand era.To the exceedingly wicked, kill!To those who bullied my friends and family, kill!To those who obstructed my path to enlightenment, kill!On the path to the heavens, I tread with songs, with a sword in hand, I alone am honored under the heavens!

A young surgeon, who is struck by a system, embarks on a bizarre journey of life.

The world is full of mysteries. Strange, seemingly unexplainable events occur more often than we may realize. A young boy may catch an illness no doctor can explain. An office may catch fire for no apparent reason. And perhaps, someone may die a sudden and unexpected death – their bodies blighted beyond recognition.