The Beginning: Simulating the Apocalypse - Chapter 54

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

Xiao Yu transmigrates into a comprehensive xianxia universe, becoming the senior brother of Tianyong City and activating the Immortal Emperor System. Starting from the Foundation Establishment stage, he ascends through the Golden Core, Nascent Soul, and Spirit Transformation stages, ultimately achieving immortality! This universe seamlessly integrates multiple xianxia classics, such as Chinese Paladin 1, Chinese Paladin 3, and Gu Jian Qi Tan, among others.

[Have you become more learned today?][Accounting for the capacity of your brain, your study efficiency has been increased to 28 times that of normal.][The remaining amount of energy you have for studying today, 26 hours.][You will enter an exhausted state when your energy is depleted and be unable to obtain new information.][Please relax by using the functions within the system and restore your energy as soon as possible.]With limited energy and the onset of fatigue, the Study Monster had no time to think too much--papers to come!Had the heavens not grant me this system, the unending sea of knowledge would seem like a long night.

Synopsis below:How did the Avatar universe change when a transmigrant appeared in an unknown village, long before the canonical events? And how are the two islands Kyoshi Island and Uzushiogakure no Sato (A village hidden in the maelstrom)?---Tags: AU, Before-canon, Post-canon, Violence, Death of major characters, Transmigration, Harem, Children, Incest, Romantic. Foul language.