MTL - Age of Mysticism - Chapter 460 abyss and starry sky

Riding out the apocalypse on a tropical island isn't exactly a vacation. When mana arrives on Earth, Coop finds himself isolated in paradise with only one real option to survive. He needs to claim a civilization shard and level up. Coop maximizes his chances by carefully selecting a class and committing to progression. He’ll need to grind thousands of monsters to compete on the system's leaderboards while upgrading his settlement to represent the factionless.

when the most beautiful and popular girl of the whole campus offered Adam Eden, a certified loner the once in a lifetime offer to be the photographer and manager of her Only Fans account and also receive a percentage of her earnings, he was rightfully suspicious.However, in a desperate attempt to get some easy money, he went against his better judgement and accepted her deal.This decision would not only change his life, but would mark the beginning of his journey to Conquer every girl he's ever wanted–––––––––––––––––––––––––Every character in this book is 18 or olderNo netorase, some Netori (MC does the stealing not the crying)

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

Lan Xuan smiled gently as she said, “My dear sister, who told you to obstruct my path? Your man belongs to me, your dowry belongs to me, your everything, belongs to me.”