MTL - My Wife, King Arthur - Chapter 660 Girl on Sirius Island

Qin Tian accidentally transmigrated into a sickly body, a body with broken Dantian that was unable to practice Qigong, in another world. Fortunately, God had mercy on him by giving him a level up system. Useless? That was him in the past. Not worrying about practicing Qigong, he was now able to kill Monsters to level up. Easy! Level up when killing Monsters; level up when killing people. An unbeatable sovereign of the clan in the eyes of other people, but in his eyes, he is a glittering big BOSS.

With this level up system, he will no longer encounter any bottlenecks during a breakthrough in cultivation like other geniuses; all he needs to do was kill as many monsters, clan heads, sovereigns, world experts … to have a better life.

Dedicating his life on a road to become an expert.

- 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

“Are you still going to run away?”“No, not anymore.”He loved her to the point of paranoia, a compulsion that penetrated his bones and was impossible to cure.“Babe, you can only smile at me.”“Babe, I’ll get you everything you like.”After getting revived, Qin Shu’s eyes were as bright as snow and she had high intelligence. She held on to her handsome and rich husband, refusing to let go, devoting herself to protecting and pampering him. She worked hard to become stronger so that she could stand shoulder to shoulder with him.Before her revival, Qin Shu believed the words of her younger sister. She hated him, blamed him, and devised a thousand ways to run away from him.Yet, he loved her deeply, pampered her with all his heart, and allowed her to behave atrociously.

Venshiro, a young ronin bound to the Black Vein Blade, is hunted by clans who would kill for the curse he carries. Every time he draws the sword, it takes something from him—his memories, his soul. But the blade remembers everything.And now, it wants more.