MTL - Marvel: Start with God of Destruction - Chapter 12

“Lin Yi, I'm pregnant...”“Oh my God, triplets?”Lin Yi was immersed in boundless shock.“Ding! The Good Father System is officially activated!”“Newbie reward: A 400 square meter luxury villa in the city!”“Be nicer to your wife and children, and you'll have more chances to trigger rewards, oh!”Lin Yi was ecstatic.“Xue Mei, let's get married!”

Intellectual Villages are old fashioned rural villages recreated with cutting edge technology. Those villages attract the Japanese monsters known as Youkai.

The high school boy Jinnai Shinobu lives in one of those villages and has a Zashiki Warashi living in his house. He tends to run across Youkai with unnerving frequency and this often leads to trouble for him.

Lumberling, a 42-year-old civil engineer, grew numb to the monotonous rhythm of modern life. Hoping to rekindle his sense of wonder, he set out on a solitary nature trip, only to stumble upon an ancient, forgotten pyramid. A strange red light burst forth, killing him instantly… and binding itself to his soul.Cast adrift in the void, his soul found no rest, until he awoke in the body of a young foot soldier, bleeding and broken on a war-torn battlefield in a world not his own.Determined not to die again, Lumberling fights to survive in this brutal new realm where knights clash with monsters, kingdoms rise and fall, and mysterious powers shape the fate of nations.Armed with a strange ability to devour the essence of those he slays, he begins to carve out a new path, one forged by blood, strength, and sheer will.But power alone may not be enough. In a world where danger lurks in every shadow, and ancient forces stir in the dark, can a lost soul rise above fate… or will he be consumed by the very essence he seeks to control?

In novels with a stud there is always a Senior Martial Brother like this:

In the early stages of the novel, his innate talent is high, his cultivation is good, his appearance is handsome, and he has an intelligent, cute younger Martial Sister as a fiancée.

In the middle stages of the novel, he is caught unprepared and defeated by a young disciple (the protagonist) in the sect who’s hardly remarkable at all. From then on, he falls from his godly altar and loses his brilliance. Even his young Martial Sister leaves him for someone else.

In the late stages of the novel, he continues to turn dark, going down the Demonic Path and becoming the major villainous boss. However, the protagonist still ruthlessly defeats him and his soul is eternally sealed.

Once Qin Mo opened his eyes, he discovered that he had become this Senior Martial Brother.

- Description from Novelupdates