The Undead King of the Palace of Darkness (WN) - Chapter 120.1: , The Mirage King (7)

“Waking up from sleep, Ye Feng realized that he had transmigrated to a world where the cities had awakened and the whole world lived in symbiotic relations.

Every young person of age would choose a symbiote that was compatible with them.

Some people built a symbiotic relationship with the Ancient Great Dragon of the Origins. After they matured, they could shatter the earth with their dragon breaths.

Some people built a symbiotic relationship with the Twelve Winged Flaming Angel. After they matured, their sacred light shone upon the world.

Some people built a root-level symbiotic relationship with Succubuses. After they matured, they became insanely attractive and charmed the world.

However, Ye Feng’s symbiote was the most unremarkable creature, a Slime?!

Fortunately, he activated the system and awakened the six great sequences at the beginning!

[Perception]: Your ability to sense danger and opportunities is amplified significantly.

[Devour]: You can devour any living being that is smaller than yourself to increase the size of your own body.

[Split]: You can split your body into smaller parts. Each part will retain part of the initial body’s abilities.

[Regenerate]: The recovery capabilities of your various stats are amplified significantly, at the same time your adaptability is increased rapidly as well.

[Mimic]: Your symbiote will evolve at an accelerated pace. Every time it evolves, there is a chance that it can awaken a new ability.

Watch how Ye Feng’s Slime grows to rule the world in the end…

A 30-year-old NEET is reincarnated into the body of an otaku that choked to death on instant noodles. As he comes to grips with his new life, he realizes that this world is subtly different from Earth. The denizens of this world are far better looking, and this new world also possesses futuristic technology as well as mysterious Yin Yang masters!

After reincarnating, he realized that he was endowed with a miraculous game-like system, which enables him to increase his own stats and transcend the limits of the human body. This system even has a game-breaking ability to save and load in real life!

In this new world that’s akin to a 2-D game, he just wants to enjoy life and head for a glorious future… However, he is quickly embroiled in a complex plot. Can he unlock his true potential and utilize his system to break the shackles that confine him and discover the truth about his previous body’s circumstances?

- Description from novelupdates

Even though Gu Yunxi was created from the accumulation of the resentment of souls, there was not a bit of ruthlessness nor cruelty in his nature, only a desire to cultivate. Just as he achieved his human form, he was sent to reincarnate. Under the control of Heaven, he experienced life after life of suffering, dying a terrible death every single time. After thousands of reincarnations, thousands of terrible deaths, he finally accumulated enough power to escape from the Laws of Heaven. He swore to get revenge on this blind Heaven’s Law that’s unable to differentiate good from evil.

So what if it’s the Heavens? He will stir up the rights and wrong, the good and evil!

You want me to accept this life and die, but I just won’t! I want to live, to rebel against the heavens, to reverse this joke of a destiny!

- Description from Novelupdates

This story is set during the end of the Sui Dynasty, a time where multiple powers struggled for supremacy and power.