I hacked through the chaotic world with my blade - Chapter 737 - 184 I Want to Fall in Love_4

This is a world where humans, demons and mysterious beasts coexist. Humans cultivate mysterious qi. Demons cultivate corporeal bodies. Mysterious beasts cultivate soul perception. A legend says that in the middle of an endless rainforest, there are extremely powerful existences; they are called demon kings. Some demon kings have a tyrannical corporeal body, some are experts in illusions. Some demon kings are proficient in magic, some can even move mountains. Some demon kings are able to sense things thousands of miles away. These demon kings rarely appear in the human world. Even if they emerge in the human world, they would reincarnate in human form; assimilating with mankind while seeking to breakthrough realms…….

Three years ago, Yun Qing Yan fell into the Immortal Realm from the mortal realm. Three thousand years later, he became Divine Emperor Yun who shook the entire Immoral Realm. Breaking through the void and returning back to the mortal realm, Yun Qing Yan discovered that only three years’ time had passed here. “In the past, I did not possess the power to protect the people I hold dear. Now, I want the entire world to grovel at my feet.”

- Description from Novelupdates

This is a story about the protagonist getting the system, going crazy in the biochemical apocalypse, producing aircraft and tanks, destroying zombies, saving good people and killing bad people.

- Description from novelbuddy

A catastrophic rift has torn the world apart, tearing open the fabric of reality and unleashing hordes of demons upon humanity. As the world is thrown into disarray, cities fall, governments crumble, and the once-thriving human race finds itself on the brink of extinction. What was once known as civilization is now a nightmare of chaos, destruction, and monsters. Amidst this apocalyptic nightmare, Selene, an ordinary woman, finds herself thrust into a brutal new reality.After a near-death encounter with a demon, she awakens a mysterious lust system within her—one that demands intimacy to grow stronger. This power grants her extraordinary abilities but comes with a dangerous cost: to survive and protect those she loves, Selene must navigate a world where every bond she forms feeds the system’s insatiable hunger.In a world ravaged by demons and destruction, Selene must learn to wield this power before it consumes her completely.