MTL - Metropolitan System - Chapter 16 Is this about?

The Red Dragon came from the vast wild wastes, coveting all the strength in the world. It once had countless titles: Mountain's Wrathful Flame, Infernal Calamity, Crimson Emperor, Ashen Dragon......The world trembled under the shadow of the giant dragons. He stirred up the craze of the magic industrial revolution; in the empire he established, Wyverns roared, artillery fired in unison, and steel beasts appeared in the sky and on the land, while disasters from another world rampaged everywhere.“Submit, or die.”Cassius spread his wings, blotting out the sun, and gazed down at the trembling humans, elves, and dwarves below, saying thus.......It is a story about a Red Dragon with a player template conquering, ruling, and transforming an alternate world.(Pseudo of DnD, The Fourth Calamity, Red Dragon)

The year is 2025. A devout Christian named Arthur Bennett wins a lottery to participate in a revolutionary virtual reality experience at a high-tech company called Elysium. The program utilizes a unique VR pod to immerse users in a world based on a popular anime.As the other participants—a mix of personalities with varying degrees of anime knowledge—prepare to enter the simulation, Arthur remains the only one who has never indulged in anime. Upon entering this new world, he discovers an unsettling truth: pain is excruciatingly real, despite the creators' claims of a dampened pain response.He eventually finds himself trapped in prison, unable to log out, and demanding to be released from the program. Calls go unanswered, and the world of ninjas becomes a nightmare where hunger, thirst, hygiene, and even death are all real.Angered that he was deceived, he abandons all sense of logic and vows to become a villain no one would have ever anticipated.

The handsome, noble, cold, and ruthless family heir Ignatius Leclair took a liking to the fostered girl Delphine Carter in his home.From then on, the aloof man transformed into a loyal companion, taking care of children, cooking... The entire aristocratic circle was utterly shocked, with everyone envying.Delphine Carter smiled serenely: cunning, energetic, vengeful, a different persona by day and night.[Reading Tips: 1V1, both protagonists are pure, sweet story, the heroine is beautiful.]

Xie Yang has spent many years in the apocalypse and is tired and worn out. Then he transmigrated into a simple and superficial novel about the entertainment circle.

The protagonist of the novel was handsome, smart and reborn. The female protagonist of the novel was beautiful, inspirational and had a golden finger. Some male and female roles were also beautiful and had a deep background. If he casually transmigrated into one of them then he could close his eyes and enjoy himself. However, he didn’t transmigrate into any of them and instead became the hidden husband of the biggest villain in the novel, the male protagonist’s uncle.

He was called a husband but it was more similar to a babysitter. This was because the biggest villain in the novel was a terminally ill patient with a terrible personality and a sick brain (really sick). They got married for the sake of happiness.

Xie Yang: It doesn’t matter if you are the male lead, the female lead or the villain, whoever dares to stop me from living a comfortable life will die.