MTL - Blackstone Code - Chapter 3 this is not your fault

A mysterious natural phenomenon caused the Earth to be plunged into darkness. The world turned into an endless bloody chaos and mankind is on the brink of extinction…

Chu Yun Sheng, an ordinary white-collar worker, discovered his family heirloom book shining a bizarre light by accident. Out of curiosity, he tried to study the heirloom book.

After a long research, he still only understood a few symbols written in the ancient book. However, he was shocked when he figured out what messages the ancient book tried to tell him: the sun will disappear, and humanity is doomed…

He tried to spread the message, but no one believed him; his family and friends even tried to take him to see the psychiatrist. Eventually, he gave up telling anyone, but prepared for the apocalypse in secret.

Until one day– the sun really disappeared…

- Description from Novelupdates

Jiang Yi, with the Celestial Book, transmigrates to the world as a Demonic Cultivator of the Demon Dao. He wants to knock open the gate of longevity and immortality.【Celestial Book, show me the opportunity I can obtain today.】【50 li outside the sect gate, in a green-water cold pool, there is one Spirit Fish, which can be caught.】【Celestial Book, show me the most compatible Cultivation Technique for me at present.】【Lu Mountain Sword Sect's 7th Grade “Prime White-Clad Jiazi Jiao-Slaying Song”, Qixia Mountain's 5th Grade “Rainbow-Gathering and Cloud-Refining Pointing Profound Scripture”, Innate Demon Sect's 3rd Grade “Grand Sage True Skill of the Profound Monarch's Prayer”…】

Chu Qin, a seasoned otaku, with a deep passion for watching the Soul Land anime, had the chance encounter to actually traverse to this place.Moreover, he awakened the Goddess System.

What’s not to love about my new life after transmigrating into a Pet-centered world?
There are mighty creatures that come in all shapes and sizes. They can either be cuddly companions, helpers in your daily life, daring scouts or strong fighters. Or all of the above. Not bad, huh?

I have a family, but the fact is completely overshadowed by my younger sister. She thoroughly hates my guts, and she makes sure that I know this. Every. Single. Day.
Did I mention that she’s disgustingly talented while I am a bottom feeder? A terribly handsome one at that.

I have free rein to run the family business on my own. A small and quaint Pet Store. It should have been great if not for the fact that the previous owner of this body was born with ZERO affinity to handle Astral Pets…

It wouldn’t be a proper transmigration without a gimmick or a system to pave my road to greatness, don’t you think? I have one, but I don’t know if I would be better off without it…