While Others Cultivate, I Use My Unique RPG Leveling System to Cultivate Smut Romance With Their Girlfriends! - Chapter 605: Country-sized city

Violet skies, a world undergoing massive changes, a deficient moon, interlinking voids…
When the world experienced a cataclysmic event,the majority of living things ceased to exist. Although humanity survived by hiding in the last safe zones, humans had to face mutated dire beasts and colossal source beasts that could break through the space barrier and enter the earth at any second.
Luo Yunyang, a young man who grew up in those calamitous times, obtained an attribute regulator and set out to walk the path of supremacy!

- Description from novelupdates

A boy who lost his love for Formula racing after his father died on track, bringing calamity to his family. Left to care for his mother and sister, Luca does all he can to make ends meet. But it seems that every step he takes keeps pulling him back to the asphalt, and one sudden endeavor changes his life completely. [SYSTEM INITIALIZING......] [SYSTEM MERGING COMPLETE!] [Congratulations, you have attained the Formula 1 System] Luca rekindles his love for Formula racing as he strives to find his footing in this world. Rivalries and conspiracies may try to weigh him down, but Luca is determined to emerge victorious. [THE FORMULA 1 SYSTEM, A SYSTEM THAT WILL HELP HOST BECOME THE BEST RACER IN THE WORLD]

The story is about a man who’s opposed to the now-common practice of implanting false memories, but is one day given memories of a fictional childhood friend. This fabricated happiness torments him, but then, to his surprise, he meets her – a girl who shouldn’t exist.

In the 21st century Earth gave Birth to greatest genius ever. A genius who Master myriad of arts. Medicine to Engineering. Mathematics to Micro Biology. Weapon Designing to Environmental control. Music to Painting. Dance to Martial arts. He mastered Everything.