Interstellar Zerg: The Swarm Engulfs Everything

[Reborn + Zerg + Growth + Steamrolling + Power Fantasy + System + Villain] Since ancient times, evolution has always been survival of the fittest, from apes to the top of the food chain. Now, I'm going to turn all of that upside down, reshuffle society, and return it to a primitive state. Dongfang Han had been living it up and doing nothing, spending the inheritance left by his deceased parents. Then one day, he was struck by lightning and discovered that he had transmigrated into the body of a top student at Huaxing University, an avid researcher of the Zerg in the university's premier biology lab. Just as Dongfang Han was about to go on shambling through life and doing nothing, he discovered that he had awakened the Zerg Evolution System. From insect control to biological armor, from the birth of Zerglings to gene editing and evolutionary splitting, he even managed to create Carnifexes and Leviathans. When Dongfang Han bared his fangs to the world, a Leviathan vast enough to blot out the sky slowly emerged in the west. The Eagle Sauce across the ocean was completely dumbfounded. Was this the Rabbit's latest biotech? Or some mutated creature from nuclear radiation???