The Heroine is My Stepsister, and I'm her Final Boss - Chapter 124: Intention.

Ruel finds himself thrust into a brutal post-apocalyptic world, bound to a bizarre “Milf System.” This system demands morally questionable acts – NTR, seducing milfs, and claiming other men's wives – as the sole means of gaining strength and essential survival skills.The brutal reality of this new world awakens Ruel's hidden lust and dark desires. He swiftly abandons any semblance of morality, embracing the system's perverse demands with growing fervor.Driven by an insatiable hunger for power and pleasure, Ruel revels in the ravages he inflicts, using his newfound abilities to dominate and conquer.His journey transforms him into a ruthless force, where survival is intertwined with the satisfaction of his darkest urges, leaving a trail of broken relationships and conquered women in his wake.

What if life could be repeated?

But he became the clan uncle who was once called a lunatic?

Alas, wearing open-crotch pants in front of me, crawling on the ground, is it my two-year-old self?

I originally wanted to give my former self more New Year’s money, but I never thought that I would go from a braised pork stall to a food giant, from a small factory to an industrial empire.

- Description from novelbuddy

Beauty they say is in the eyes of the beholder.Everybody desires beauty and love it.What if it becomes a curse.Bellarosa（Beautiful rose）Romano is the daughter of the cook of the powerful mafia Vincenti family.She has been cared for and looked after since young by the Vincenti family when their eldest son and Don of the family decides to take up her and her mother's responsibility.Bella has always been scared of the Don who criticises her at every mistake she makes.Don Raffaele Vincenti is a man with IED intermittent explosise disoder.An incident of the past led to this disorder of his and only few can calm him down.Raffeale finds himself in a lustful obsession for the little woman who is in his care and with every growing day he desires her like a drug,oxygen and breathe.Bella is terrified by his madnessWill she be willing to help him.Secrets get unveiled on the way～～～～～Groaning he takes her hand and places it on his buldge his eyes clouded with desire and lust.''Please Bella,Touch me''Raffaele growls out gasps escaping his lips while tears fall out of Bella's eyes as she tries to retrieve her hand from his grip.

Easily cowed and bullied, she was the useless, ugly woman with no talent in medical skills. Supported by millions, he was Tianning’s most respected duke with the power to move all under Heaven. On their wedding day the bridal sedan was carried to the front doors, but the Duke of Qin’s gates were shut tight.

They told her, ‘Come back tomorrow.’

All alone, she walked step-by-step full of pride through the duke’s doors. Little could they imagine, this unattractive good-for-nothing was a beautiful, genius doctor of poisons!

—

After transmigrating to the past, poisons expert Han Yunxi finds herself on the verge of being married off to the country’s second most powerful man, the Duke of Qin. Her future life seems set–except her husband is an unfeeling ice block, her in-laws think she’s a eyesore, the empress dowager wants to use her for her own goals, and poison-related plots abound.

Alone, the intelligent (and sensible) Yunxi must carve her own space from the intricate web of court intrigue and the jianghu, relying on her words, wits, and wisdom to survive. Adapt when necessary, use force when required; to survive and thrive is the name of the game to a prosperous life.

No matter what, she’ll prove her right to live!

- Description from novelupdates