MTL - The Great Merchant in the Cataclysm - v2 Chapter 535 Black ocean

The formless ancient world was infested with despicable demons. They hunted and feasted on mankind, keeping the human civilization constantly in a weak and suppressed state.

During the first known year, a magical mountain descended into the world from the realm of the Gods. Carved on this enormous mountain was a message: ‘Heaven Prevails’…

After the Grand Descent, a name that was given to the descending of the mountain, the Three Great Sages made their ways to Mystic Mountain where they learned to harvest what we now call magic, establishing the Mystic Cults and eighty-one sacred shrines to help aid mankind with the cult’s mystic powers against the eternal fight to the death with demons.

- Description from Novelupdates

This was an era where everyone could experience various worlds through simulations.

When everyone reached 16 years old, they would receive a Life Lantern, which would grant them two free simulations.

During the free simulations, they had to break through the limits of humans in order to attain a bright future in reality.

Otherwise, they would lose their Life Lanterns and they would slowly be corrupted by a black fog until they eventually died at a young age.

Lin Qiye, who transmigrated to this era, failed his first simulation.

During his second simulation, by chance, he acquired a permanent SSS-rank talent – the Deduction of Genesis.

Lin Qiye’s first life: [When you were two, you had a sudden illness, causing you to have a deformed head and low IQ. When you were 15, your parents passed away. When you were 18, you died of an incurable disease.]

Lin Qiye commanded, “The Deduction of Genesis, deduce for me a way to transcend this life.”

[Congratulations for defying the heavens and successfully changing your fate. You acquired S rank in your evaluation. Your rewards are…]

…

His second life: [When you were 15, the spiritual aura on Earth rejuvenated. You did not awaken any talent while your childhood best friend achieved outstanding attainments with her awakened talent. When you were 16, you were killed by a stranger.]

Lin Qiye summoned, “The Deduction of Genesis!”

[You carefully made plans before the spiritual aura rejuvenated. Because of this, you defied the heavens and successfully changed your fate. You acquired S rank in your evaluation. Your rewards are…]

A 34-year-old NEET otaku, chased out from his house by his family, found that his life is reaching a dead end. He then recalled that his life could actually have been much better if he had made better choices in the past.

Just when he was at the point of regret, he saw a truck moving at fast speed, and three high schoolers in its path. Mustering all the strength he had, he tried to save them and ended getting run over by the truck, quickly ending his life.

The next time he opened his eyes, he is reincarnated to a world of sword and magic as Rudeus Greyrat. Born to a new world, a new life, Rudeus decided that, “This time, I’ll really live my life to the fullest with no regret!” Thus starts the journey of a man yearning to restart his life.

After being transported to another world, Lei XinFeng must struggle to survive. His village is settled in a forest, far away from any major cities.