Pantheon Online - Chapter 257 Business As Usual

Once upon a time, a boy was referred to as a “War Hero.”

In another world called Aletia, the boy who had saved the Lost Kingdom, conquered their neighbouring countries, and led to the rise of a grand empire decided to throw everything away, returning to the modern era at the cost of his memories.

As three years passed, the boy who was happily enjoying his daily life was once again called back to the other world.

However, what awaited him was the Aletia of 1000 years in the future.

As his past glories became a “myth,” the legend of the youth referred to as the, “Twin Black Hero King,” begins.

Su Ming obtained the full occupation system, omniscient and omnipotent, and accepted ten apprentices on the mountain according to the system tasks.

Ten years later, the system can finally let him go down the mountain.

Only then did he discover;

His eldest apprentice became an urban killer

The second apprentice is the richest man in the world,

The three apprentices are the Huaxia Soldiers

……

- Description from novelbuddy

Another entry in what you can call the Proto Harem Series: the books written before the Harem Series that take place in the same world.

It’s about a swordswoman whose student is captured, so she goes to rescue her.

SSR-ranked killer Mu Hui died in an explosion, only waking up to find herself transmigrated into the body of a vicious female supporting character in a book.