MTL - After the World of Conan is Full of Bad Luck - Chapter 49

[Shelter System successfully bound to host!][Option One: City of Light, save the survivors in the apocalypse and become a glorious and benevolent savior.][Option Two: City of Darkness, humans who enter the City of Darkness can only become your slaves. And you, will be the devil ruling over the apocalypse.]Sorry, I am no saint, I choose City of Darkness! From today onwards, I will be a villain!

“From today onwards, you will become the Envoy of one of the Main Gods in the Dimensions of Gods. You will travel from one world to another and through that, you will attain what others will never obtain in their entire life.”

The moment these words echoed in Fang Li’s head, Fang Li’s life was destined to be extraordinary…

- Description from novelupdates

Li Rui had lived to to seventy without any cheat or golden finger. Looking back on his life, he had gained nothing and accomplished nothing. Just as he’s been worn down by the years and resigned to his fate, he unexpectedly awakened the Perfect Life System.“Come on, tell me, how is a seventy-year-old man who’s about to kick the bucket supposed to live a perfect life?!”【You are born with the Martial Bone, and from the moment of your birth, you are destined to become the world’s number one. You gain the talent – Martial Bone.】【At the age of ten, you join a renowned sect and shine in the sect’s grand tournament, gaining fame and attracting the attention of an immortal teacher. You acquire the talent – Divine Skill Mastery.】Looking at 【Gains the favor of an immortal maiden, becoming a divine couple】, he fell silent.“Seventy years old is just the right age to start doing things!”…Many years later.Li Rui finally emerges with the supreme innate Dao fetus, slaying ten thousand demons, breaking ten thousand evils, and ruling over the immortal realm for a hundred thousand years. He is hailed by the world as the Evergreen Immortal Venerable.

Another entry in what you can call the Proto Harem Series: the books written before the Harem Series that take place in the same world.

It’s about a swordswoman whose student is captured, so she goes to rescue her.