In the Second Generation of the Trench, He Changed To the Ruanfan Script - Chapter 8:

Explore the Universe through the hardest, truest weapon: the Fist.

Jack Rust was a disillusioned biologist with a PhD—almost. When an extraterrestrial AI calling itself the System invaded Earth and thrust it into a world of aliens and violence, the least Jack hoped for was magic. Unfortunately, the System decided to spawn a forest dungeon around him and a goblin in his face, which left him little choice.

Armed with nothing but his fists, Jack must grow strong enough to survive entire menageries of monsters. He needs to return to civilization and find out what the hell is going on. He might also get magic—or not. Surprising himself, Jack discovers that violence is fun.

In this battle-ridden new world, Jack finds the life he always dreamed about. He won’t just survive. He will thrive.

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A mysterious natural phenomenon caused the Earth to be plunged into darkness. The world turned into an endless bloody chaos and mankind is on the brink of extinction…

Chu Yun Sheng, an ordinary white-collar worker, discovered his family heirloom book shining a bizarre light by accident. Out of curiosity, he tried to study the heirloom book.

After a long research, he still only understood a few symbols written in the ancient book. However, he was shocked when he figured out what messages the ancient book tried to tell him: the sun will disappear, and humanity is doomed…

He tried to spread the message, but no one believed him; his family and friends even tried to take him to see the psychiatrist. Eventually, he gave up telling anyone, but prepared for the apocalypse in secret.

Until one day– the sun really disappeared…

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There exists eight hardships of human life- living, aging, being sick, dying, resenting, parting with loved ones, being unable to let go, and being unable obtain something.

In each life, each person will experience their own hardship. Once they obtain happiness, they are furthermore unable to let go. Whether it would be heartfelt love or resenting someone down to the bone, would it matter? As long as that person’s bone has my name, it would be good.

- Description from Novelupdates

Power and desire, money and strength, conscience and responsibility, the road ahead is at a loss, as a time traveler, Simon, where will he go, this is a leading mainstream novel with a relaxed daily life and a slow pace

- Description from novelbuddy