I'm the Mysterious Leader of the Salvation Organization - Chapter 555:

A teenager who unexpectedly gets transported to the modern world from ‘the world of the immortals’ . He finds himself in the body of an ordinary guy. He wants to go back to his world and for that, he will have to practice to get stronger and investigate the reason why and how he crossed through to this world.

- Description from Novelupdates

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…

- Description from Novelupdates

[First monster slain. Special rune obtained. Level 2 has been reached.]

Note: This is a translation but I will try to make it a good translation as possible. This is R18 which contains graphics scenes. You have been warned about it.NO NTR, NO YURI, HAREM, MILFIn the rustic heart of a sleepy village, Long Gen, a seemingly dim-witted wanderer, hides a cunning mind beneath his foolish facade. Nicknamed “Dragon Root” for his irresistible charm, he masterfully plays the fool to win the hearts and desires of the village's women. From the yearning widow at her doorstep to the curious sister-in-law peering through her window, no beauty escapes his allure. As Long Gen roams the vibrant fields and tangled forests, he weaves a tapestry of seduction and mischief, leaving a trail of whispered scandals and smitten hearts.