Sold to My Killer Husband: His Concubine's Dilemma - Chapter 5: I have Found a Girl.

“The new book 'Scolded as the Star of Death, All the Big Shots in the Capital Rush to Spoil Me' is now available!”Also known as “Reborn Era: Getting Rich with the Check-In System.”[A physical powerhouse of a female lead vs. a vindictive, sarcastic, and elegant male protagonist]After a laboratory explosion, Lin Tang returns to that impoverished era and is bound to a check-in system.Before she has time to claim the newcomer gift pack, her fiancé, sporting an air of confidence, comes to break off the betrothal.The reason being, he's about to secure a stable job.Lin Tang looks at the ordinary yet self-assured man, parted her red lips slightly and said, “...break it off!”Less than a month later, her ex-fiancé was fired for some reason.Lin Tang took a stroll around the county and became the executive officer of the Broadcasting Station in the Textile Factory.Ex-fiancé's internal OS: Is it too late to reconcile now?Those times were tough!Despite being treasured by her three big brothers and parents, everything from food to cloth and even soap required coupons...Even living frugally couldn't alleviate the miserable condition.Looking at the black mush in the bowl, Lin Tang fell silent, “......”Thankfully, she had a system!Need anything? Just check in to get it.Many years later.A handsome man looked at his delicate wife with a fair complexion, managing to keep a straight face as he said, “I heard you could knock out a wild boar with just two punches?”Lin Tang's eyes sparkled, her fingers gently exerting force, and the Enamel Jar in her hand deformed. She responded in a stern manner, “Nonsense! Don't believe those rumors. We're civilized people and can't be that barbaric!”

A teenager who unexpectedly gets transported to the modern world from ‘the world of the immortals’ . He finds himself in the body of an ordinary guy. He wants to go back to his world and for that, he will have to practice to get stronger and investigate the reason why and how he crossed through to this world.

- Description from Novelupdates

Crossing to One Piece world, he became Roger’s younger brother.

I, a mere con artist, was unjustly imprisoned in Tantalus, the Abyssal Prison meant for the most nefarious of criminals, where I met a regressor.

But when I used my ability to read her mind, I found out that I was fated to die in a year…

and that the world would end 10 years later.