Abyss Age: Netherworld

In the distant future, human civilization has crossed the galaxy and established a vast interstellar federation. However, there is a mysterious dark region in the universe - the "Netherworld", which is full of unknown dangers and forbidden powers. Legend has it that in the depths of the Netherworld, there is a hidden relic of an ancient civilization with the ultimate power that can change the fate of the universe - the "Heart of the Abyss".
The main character, Lin Yi, is an ordinary interstellar Federation border guard. In an accident, he obtains a mysterious badge and becomes embroiled in an interstellar adventure. Together with his friends, he will explore the Netherworld, unlock the secrets of the Heart of the Abyss, face the threat from the dark forces, and save the entire universe from the depths of the world. It's an epic journey of courage, wisdom, and faith.