The Exorcist - Chapter 16Book 6: : Strange help

The world that nurtured the civilization which reached the pinnacle of magic was on the verge of destruction.
The last survivor transmigrated to the past, when the magic civilization started growing, as countless mages were still fumbling their ways through the thorny paths of magic knowledge.
He, who came from the end of the magic era, aim to reach the pinnacle of magic.

- Description from Novelupdates

A classic villainess/heroine tale that puts a new twist on the genre. This Industrial Era fantasy tells the story of Nadia—a secret agent with a dry love life and an unhealthy addiction to visual novels—as she Transmigrates into the body of Vivian Moore, the villainess of the novel, from a family of business CEOs.All the destruction flags were raised, and Vivian was at the end of her rope. Her life was about to take a turn for the worst, but with Nadia behind the wheel, she seized Fate by the hairs of its head and yanked it into a sharp U-turn.No more weakness was allowed! If something wanted to get rid of her, she would stab it to death. If someone wanted to trample over her, she would shoot them into a beehive. And there was no stopping her because she had the strongest weapon a main character can have: the System!

The entire planet was dragged into a mysterious space known as the “Civilization Trial,” with various apocalyptic trials following one after another. The crisis began with a parasitic threat, parasitic monsters silently replacing humans, and no one knew whether their relatives, friends, or comrades-in-arms had been masquerading as monsters. As everyone was steeped in deep fear, Shen Hao stared blankly at something extra that appeared before him. [Civilization Trial Cheats Collection] Begin with a mandatory draw of a Red Mythical Talent, friend-or-foe marking map, loot box probability adjustment, points acquisition multiplied by a hundred... Monster: “Run! This civilization is cheating!!!”