This is really not mechanical ascension - Chapter 444 - 236: Internal Intrigue

In the blood-soaked world of Magus , Aizen, a young man from Earth, finds himself thrust into a brutal reality where Sorcery reigns supreme. Once a lowly servant, despised and humiliated, Aizen hid his true intentions beneath a mask of submission. With each insult endured and every drop of blood spilled, he sharpened his resolve, guided by the mysterious Wisdom System.

Finn travels to the timeline after Avengers: Endgame and obtains a system that hides one's own strength while allowing him to grow even stronger!However, he soon discovers that the system's prescribed hiding place is actually Westview!Before long, Wanda will seize control of the entire town, plunging countless people into pain and torment.Fearing exposure and determined not to give up halfway...Finn decides to act first—conquer Wanda and resolve the issue at its root.And thus, he embarks on a road of no return.Here's the cliched NOTE : English is my 3rd language so I'm not proficient in that , so if there are any mistakes please point it out to me

Born with a seed of immortality, he rose from the Han tribe at the end of the century, and embarked on the road of immortality, step by step, until he reached the other side of immortality.

Efforts will pay off. For cultivators, what better golden finger is there?

- Description from novelbuddy

Elijah is dying.Afflicted with terminal cancer, his days are limited. So, after deciding to spend his remaining time with family, he boards a plane and sets off for the Pacific Northwest to be with his sister. However, along the way, Earth is transformed by the touch of the World Tree, injecting it with magical Ethera and connecting it to a much larger universe via the System. More importantly for Elijah, though, it also causes his plane to crash, stranding him on a deserted island. But all is not lost, and through the System, he gains the Druid archetype that may be enough to allow him to survive a hostile environment filled with powerful monsters as well as more mundane threats like starvation and the elements. Meanwhile, his sister, Alyssa, must survive the collapse of civilization as she knows it while trying to keep her family safe. Follow them as they try to navigate an apocalyptic world full of game-like stats, classes, and threats aplenty.