MTL - From the Dungeon, Slaughter the Demon Apostle - Chapter 591 several possibilities

He was once the most feared villain in the empire, a master of manipulation who wove chaos from the shadows. Ruthless, untouchable—until the day he was betrayed and executed by the very man he sought to control.But death is not the end.He awakens in the body of Lady Elara Valcrest, a fragile noble girl doomed to be a pawn in political games. Stripped of her former power, she is forced into an arranged marriage with none other than Cairon Everhart—the man who once killed her. He does not recognize her, but she knows him. And she will never forget.To survive, Elara must play a new game. One where deception is her only weapon, and trust is a dangerous illusion. She must outmaneuver her enemies, uncover the truth behind her execution, and reclaim the power she lost. But as she navigates the treacherous world of court intrigue, one question lingers—Was Cairon truly her greatest enemy? Or had she been blind to an even greater threat?Time is running out. The villain has been given one last chance. And this time, she refuses to lose.

Molitia Clemence was born sickly.

She forgot to cover herself with a blanket and caught a cold. She woke up next to her husband after 10 days just because of a slight cold.

Molitia barely survived between the thin threads of life and death. When she opened her eyes, she noticed that her husband was somehow acting differently than usual…?!

***

“Have you eaten?” (Husband)

“Yes.” (Molitia)

“This is the belly of a person who ate?” (Husband)

He frowned as he stroked her flat lower abdomen. He held her wrist carefully, as if it would break. His voice rose.

“Why is your wrist so thin? Are you even human?” (Husband)

“That’s…” (Molitia)

“Butler!” (Husband)

The butler rushed to his angry voice, fidgeting with his wrists.

“Get me food for my wife to eat. Something that will help her stay healthy. Anything is fine.” (Husband)

Molitia’s mouth opened at her husband’s words, but no sound came out. ‘I just had a meal?’

Some people begin their lives with the odds in their favor but end up failing miserably.

Lin Jingzhe, having suffered many losses and setbacks, returned to his eighteen-year-old self just before failing his college entrance exam.

Business opportunities were everywhere in the early 1990s when the Chinese economy started taking off.

Now, this golden age would be his.

- Description from Novelupdates

The worst student of Westroad Academy. The disgrace of the Blake House. A new soul enters the body of Frey Blake, who couldn’t overcome his miserable life and chose death instead. “What’s with this body? I’ll have to work on tuning it from scratch.” The Great Mage Lucas Traumen, with the body of Frey Blake, gains a chance at revenge!