Blackstone Code - Chapter 57:

A supreme expert in the Immortal World had died, and a strand of his soul returned to its original body on Earth. Tang Xiu discovered with amazement that ten thousand years passed in the Immortal World, yet only a single year passed on Earth.

Ruthlessly betrayed by his lover and trusted friends, Tang Xiu found that his soul went back to his previous body on Earth, and, despite he spent 10,000 years in the Immortal World, just a year has passed on Earth and many things have changed. Having an unsurpassed knowledge, Tang Xiu will protect his loved ones and go back to the Immortal World to take his revenge.

- Description from Novelupdates

Ethan Graves was a weak, poor, 26-year-old virgin who had never even talked to a girl properly. His only escape was gaming. One night, after finally beating his favorite fantasy game, he went to sleep wishing he could live in that world and become someone powerful — someone feared, respected, and surrounded by beautiful, strong women.When he woke up, his wish had come true.Now trapped inside the very game he cleared, Ethan starts at level 1 with the mysterious Overlord System. In a world ruled by strength, where heroes, monsters, and magic dominate the realms, he must rise from nothing, grow stronger, and slowly build a powerful harem of villainesses, warriors, and queens.This is the story of a former nobody rising to become the ruler of all.WARNING:-this novel has smut.it has harem.it has smut but it is not smut based novel.No NTR

Kyoukai Senjou no Horizon chronicles the story of a futuristic civilization returned to Earth after constant warfare hindered them from traveling beyond the post-Apocalyptic Earth. At this stage, a small archipelago called the Divine States were the only hospitable land on Earth. In order to regain the space-faring technology they had lost after many years of war, they decided to recreate history with a book called the Testament as a guide.

It is the year 1648 in the Testament Era. Toori Aoi, Chancellor and Student Council President of the only academy on the airborne city-ship Musashi, faces the ten-year anniversary of the death of his childhood friend Horizon Ariadust in an accident. As he prepares to celebrate the occasion by proposing to P-01s (an automaton who looks exactly like Horizon) he discovers that his suspicion about P-01s’ appearance actually has a basis in truth; P-01s is in fact Horizon Ariadust, reborn into a robotic body. In addition to this, Horizon’s emotions had been stripped away and are now stored in eight powerful weapons called the Mortal Sin Armaments; which are now in the possession of key people in various established countries in the Divine States.

To retrieve the emotions of Horizon Ariadust, Toori Aoi along with his friends and allies begins a crusade against different obstacles as key events in history are recreated in a futuristic manner.