System: Master Your Life - Chapter 9: Xu Lin, He’s Too Skillful!

Damian, a Centurion of the Punishment Unit of the Baroque Kingdom. “Damn it.” Just once. If I were given just one more chance… ‘I would have truly conquered the battlefield with these guys.’ At the age of 30, he closed his eyes on a nameless battlefield. But when he opened them, he found himself back 17 years in the past. And this time, he had a perfectly functioning mana core that could wield magic. ‘This time.’ I will rise higher than anyone else. I won’t be swept away by the turbulent times. ‘I will conquer.’ Damian, who has returned to the past, wields his spear toward the world.

Zhang Lin, the king of Holy Light duel, was smeared by the team’s design and forced to withdraw from the online game professional league.
In order to return to the top, pick up the previous Summoner trumpet to fight against the Holy Light again, and perform the return of the king.
Summoner PK is the weakest? NO, everything is possible in Zhang Lin’s hands!
Play around with the guild, get the best equipment, and make beautiful MM…
Single P, Triple P, Group P, let the horses come over!
The bloody battle ignited the passion. Zhang Lin and his friends stepped over the mountains of corpses, and let tears and laughter witness Zhang Lin’s legendary online game life.

- Description from novelbuddy

Kim Min-jae thought he was just borrowing his sister’s new gothic romance novel. Instead, he wakes up as Kaizar Amagi, the man who ruins everything for the novel’s beloved heroine.In the original story, Kaizar is a ruthless schemer who marries Duke Meical Vukasin, the heroine’s destined partner, purely to destroy her. He dies hated and alone.But Min-jae isn’t planning to die for anyone’s plot. If he’s stuck as the homewrecker, he’s going to be the best damn homewrecker this world has ever seen.He plays his part flawlessly: charming Meical, dismantling the heroine’s plans, and smiling sweetly as she loses everything she holds dear.What he doesn’t expect is for Meical to fall for him for real or for the story to reveal a hidden BL route that was never in the book his sister read.Now, in a world of revenge, lies, and dangerous passion, Kaizar isn’t just ruining the heroine’s fairytale ending… he’s rewriting the entire story as his own.

It was supposed to be a perfect deal in which both parties got what they needed. However, after the child was born, he tore up the agreement with discontent and told her, “Who said that we’d only have one child? I want twins! Twin brother and sister! You’ll continue giving birth to more children until you bore me a pair of twins!”