MTL - This is How the Heavens and the Worlds Come - Chapter 617 sug, remember me

When a terminally ill young man awakens in the world of his favorite childhood game, he realizes he isn’t the protagonist, the destined hero, or even a major side character. Instead, he has become an extra—a disowned noble barely clinging to relevance in a world where strength determines everything. Worse, his fate in the game was to die an early, meaningless death.Armed with only his knowledge of the game’s storyline and a common system that tracks his stats and skills, he is determined to survive. But mere survival isn’t enough. He remembers a hidden easter egg from a long-forgotten anime collaboration: the Mangekyō Sharingan—a power limited by game mechanics but unrestricted in reality.With Kamui as his trump card, he walks the fine line between fate and freedom, seizing power from the shadows while avoiding suspicion. As the protagonist and his allies battle against demons and unravel the game’s grand destiny, he secretly builds his own strength—manipulating events, mastering forgotten arts, and even forging ties with villainous factions.Will he remain a footnote in history, or will he carve his own legend in a world that was never meant to be his?

Rong Zhi was switched at birth and lived in the countryside for eighteen years, her family was poor, and she dropped out of high school to work.At eighteen, her biological parents came to her door, saying she was the daughter of the Rong Family in Beijing and came to take her back to Beijing.Above her were uncles watching over the family inheritance, below were biological siblings.She was warned by her parents: Learn the rules from your brothers and sisters, don't cause trouble, the Rong Family can't afford to lose face because of you.Rong Zhi brushed aside the bangs on her forehead, smiling brightly: “Okay.”Everyone was waiting to see the joke of this ignorant and unsuccessful Third Young Master Rong, but as they watched, she became the Crown Prince who had the final say in Beijing.Everyone: This doesn't quite match what we were told??The Bai Family Head returned to the country, and all the noble families in Beijing were on high alert, except for that carefree member of the Rong Family.One day at a banquet, everyone saw Mr. Bai, standing at the top of the pyramid, bend down, holding a pair of high heels in his hand, speaking helplessly: “Such a princess.”Looking again at the long-haired woman in a dark green cheongsam standing in front of him, barefoot on his shoes, “I am a princess, and it's none of your business.”This familiar face, this familiar arrogant tone...Everyone was stunned, their eyes open wide in disbelief: Third Master Rong?!【Front-stage female disguised as male + slight sci-fi + no logic + feel-good novel + 1v1 single couple】

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

…but it seems pretty doable.