The Simple Life of Killing Demons - Chapter 36Book 11:

A once-opportunistic boy is reborn into a world of his dreams, equipped with a strong system. And he can do anything he ever dreams of.Beautiful woman? YesS*x? YesYuri? NONTR? NOSo come and enjoy the novel I write for fun.PS: This novel is fantasy and has nothing to do with the real world.

Originally from the slums, Adam was chosen as a candidate for an experiment to ignite the Spark - an entity that gives superpowers. However, he failed and was thrown into the Dead Lands - the place the world became after the fall of the Last Star, beginning a new era for mankind, dangerous and unexpected. He faced against monsters and dangerous anomalies, sometimes creating artifacts - the miracle of this world.Killing his first monster in deadly combat, Adam became a Phantom - one who could evolve, endlessly moving toward power.Follow Adam on his journey, from fighting monsters and exploring Dead Lands to endless evolution!

Just when I got to know her, the hairy girl only wants to beat me up!Prim childhood sweetheart treads on me underfoot!Childhood friend turned sister suddenly demands I repay the kindness of upbringing?...Are all these twists of human nature, or the moral decay?Surrounded by young girls wielding knives, Shen Mo Dust trembles: 'Author, why do I only meet bad women?''What exactly are you not satisfied with, let's switch roles!'Jealous at having crafted the protagonist's peak of life with his own hands but without a single girl by his side, the author furiously slams the keyboard!(Spotting the little whips raised by the venerable readers, he picks up the keyboard again)The alternate titles of this book are 'They Shine Like Stars' and 'They Are Lonely Like Stars'.

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