The End of the World for My Sister and Me

Liu Yuan, a professional killer in the 21st century, has a 100% success rate, making him known as the "King of Hell" in the killer world. By accident, I traveled to a parallel world with an area 10 times that of the earth and a population of 70 billion. On the day he traveled through time, a little girl with a kawaii face looked at him cutely, thinking that she would be like this for the rest of her life. Who knew that an apocalypse would come to this world. There are bloodthirsty Zerg here, here are demons from the abyss, here are tens of billions of zombies, plants and animals are beginning to return to their ancestors one by one, and their bodies have become extremely huge. "Dingdong, congratulations to the host and Xiao Yan for completing the deal!" "Ding dong, the other party will pay for the Fallen Heart Flame, and you will pay for your eternal life!" I don't know how to write an introduction, but the text is absolutely beautiful. I can guarantee this to everyone, please believe me! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.