Transcending the Horrors of Myriad Worlds

Protagonist Lin Chen transmigrates to a parallel world, believing he is a reborn person, and uses future knowledge to make hundreds of millions through stock trading, real estate, and lottery wins. Just as he is about to travel abroad for relaxation, the system suddenly activates, teleporting him into the zombie world of the Korean film 'Train to Busan'. After surviving and returning to the main world, he is recruited by the special national department 'Sky Dome', only to discover that characters from various daily TV dramas exist in this world, and the system can open portals to horror and apocalyptic worlds across myriad realms. — Description from novelcodex.org