MTL - I, Doomsday, Have Been In the Core of the Sun For a Hundred Thousand Years - Chapter 17

As the heir apparent of the Ye family, Ye Xuan went through fire and water for his family, but Ye Lang, who had just awakened his Divine Soul, usurped his place. In order to keep his position, Ye Xuan challenged Ye Lang to a Life-death Duel. With the broken Dantian, would he win this fight? The black ring his mother left brought him a great opportunity: Realm Hell Tower, where he met a mysterious lady, who told him to look for nine Daoist Laws to enhance his strength and gave him the Spirit Heaven Sword. Could Ye Xuan find all the Daoist Laws and become a powerful swordsman?

- Description from Novelupdates

I originally thought this was a world like an ordinary urban novel…Drawing comics by myself, traveling is pretty good.
But tell me, what happened to this magician called “Emiya Kiritsugu” who jumped on my face?
Who changed the settings?
Currently involved in the content of “F/Z”, “F/SN”, “Fantasy Carnival”, “The Emiya’s Meal”, “The Holy Grail of the Imperial Capital”, “FLA”, “Elmello II Event Book”, “FGO”, “FE”, etc.
Others related to “JOJO’s Bizarre Adventure”, “Rebellious Lelouch”, “Persona 5”, “Attack on Giant”, “Death”
“FGO”, “FE Series”, “FA”, “FSF”, “Cangyin”, “Magical Girl Illya” will be involved next…

- Description from novelbuddy

[You have successfully devoured your target.][Your strength has increased by 250.][Your speed has increased by 200.][Your defense has increased by 300.] [You have acquired the Golden Immortal Bloodline.][You have acquired the Chaos Beast Physique.][Your cultivation has increased.][You have accumulated Madness.]The Era of Chaos is upon the Cosmos once more leading to various kinds of Chaotic Rifts spawning randomly.Meanwhile, a 26-year-old actor on Earth, Pascal Margrave, transmigrates into the body of Caelum Goldheart. Upon transmigration, he becomes the host of the World Devouring System - a system that allows Caelum to quickly become stronger by absorbing the power of anyone he kills.However, things are not so simple. Caelum quickly realizes that while he is the [Host] of the World Devouring System, he is not its true [Master]. Failing to complete the system's milestones within the designated time will lead to his soul being tortured in the Netherworld for all Eternity.Join Caelum on his journey as he attempts to take control of his own fate, uncovers the hidden plots around his transmigration and becomes the dominant power of the Cosmos.

One drunken night, my friend blurted out something absurd.“Su-Hyeok, I’ve regressed.”“Regressed?”“Yeah, I’ve returned to the past.”“Are you out of your mind?”“You’re humanity’s only hope.”Then, I was dragged into the tower for real… but who cares?Regressor? Tower? Trials? What are those supposed to be?An overwhelming talent is about to crush everything in its path!