MTL - Marvel: Start with Summoning the Shadow Troopers - Chapter 138

Gu Shanhai witnessed this great world of numerous heavens and discarded his third life.The gods of the human realm forged an eternal utopia with blood and fire.The King of the Red Dragon led his knights, patrolling the never-setting empire.The scholar, with a smile and a sword stroke, depicted thousands of miles of rivers and mountains, while monsters opened their eyes and stretched forth claws, giving birth to all manners of demons....'Everyone here is a player; you can't call me abnormal just because I haven't been digitized, right?'

I’ve had my fair share of weird wake-ups, but opening my eyes in Black Clover as some no-name extra? That’s a new one, and let me tell you—it’s not exactly the dream reincarnation scenario. Turns out, I’m Sebastian Silva, a guy so insignificant he’s barely a footnote in the series. Oh, and did I mention I’m the father of Noelle Silva and the husband of Acier Silva, the most badass woman in the Clover Kingdom? Yeah, talk about pressure.The kids hate me, my wife barely acknowledges me, and my role in the family is pretty much non-existent. But now that I’ve got my past life’s memories and a second chance, I’m not about to let things slide. With Acier on her deathbed, family dysfunction through the roof, and powerful players lurking in the shadows, I’ve got a lot on my plate.Saving my wife? Reconnecting with my children? Staying under the radar of the Wizard King and some seriously dangerous enemies? It’s not the easiest transmigration, but hey—we’ll live with it.*NOTE: Although all chapters will be written by me, to maintain daily upload, and not lower quality, because I have many time commitments like university, work, etc. Chapter's will be subjected to revision and editing through Grammarly AI.

The heavenly God of Warriors was betrayed by his true love and murdered at the very first night of wedding just because his merits made the monarch insecure. Reborn in a hundred years, Nie Tian would be an appendage no more. Reach the welkin, reverse the fate, reign over the heaven and reconstruct the worlds.

- Description from novelupdates

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