I Copy the Authorities of the Four Calamities - Chapter 252: Heaven Gate

A lewd story with Mom, Sisters and Aunt.—Incest Alert—

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…

- Description from Novelupdates

You, an ordinary human, transmigrated into this world along with a City-Destroying Calamity—Blood Moon.Just when you thought you could rise to the top of the world by awakening a system, you received the following mission:[Do not harm any living being for 10 years][Reward: Unknown God-Tier Reward]...Ten years later, during the Awakening Ceremony—“Hahaha! This loser actually awakened an F-rank talent—Furniture Craftsman!”“Looks like our academy's carpentry workshop finally has someone to carry on the legacy!”[Ding! Congratulations, host. Mission complete. God-tier reward unlocked.][Ding! Host has obtained: Infinity Skill Points. You can instantly upgrade all skills to their MAX level.][Ding! Host has obtained: Infinite Plunder. You can plunder any unowned skill traits.][Ding! Host has obtained: Infinite Fusion. You can fuse all your existing skills and randomly generate new effects!]...Years later—A lean, handsome figure sat atop the frozen skies.Pointing your sword toward the heavens, you declared:“The fate of mankind shall be decided today.”And standing against you—was the very Sun, the celestial being humanity had worshipped for tens of thousands of years.Faintly, a string of symbols floated upon its blazing surface:HP: 999999999999999999

The apocalypse descends, zombies and monsters appear, followed by System Leveling, which grants skills to all survivors.With the collapse of law and order, some become powerful while others remain weak, and so the dark ages begin.