Reincarnated as the Baron's son: My Infinite Card Upgrade System - Chapter 24: Cave snake in the hole!

“A modern online novel writer who had been struggling finds themselves transported into the world of One Piece, becoming a 10-year-old child.After a series of events, Ryuen arrives at Cocoyasi Village. The protagonist possesses the Tori Tori no Mi (Bird-Bird Fruit), Mythical Zoan type, Phoenix form.After undergoing a rebirth (Nirvana), the protagonist's transformation no longer involves turning their hands into wings, and the fruit's power becomes even stronger!From the moment they reach Cocoyasi Village, the protagonist and Nami embark on an adventure, traveling from island to island, indulging in food, drink, and fun. Along the way, they also help the poor by taking from the rich, because, after all, Bellmere’s family is still...”

Arthur, a young man in his twenties, suddenly finds himself inside the world of the novel “The Rise of the Sovereign Sword,” a famous story he had been reading in his previous life. He doesn’t understand how he ended up in this world, but he soon discovers that he has been installed as the ruler of a poor and small barony due to a serious misunderstanding—everyone believed he was the illegitimate son of the Duke, a man notorious for his terrible reputation and corrupt deeds.Afraid of having his true identity as an impostor exposed, Arthur finds himself in a difficult predicament.As he tries to find a solution to his dilemma, he faces daily problems stemming from this world’s extreme backwardness in terms of economy, technology, and governance. However, instead of surrendering, he decides to use the knowledge from the world he came from to change this regressive situation.Arthur attempts to spread civilization and progress in his society, fighting against outdated traditions and establishing new concepts that will improve and advance people’s lives.

With the marriage of her prostitute mother to the Count, Aria’s status in society skyrocketed immediately. After leading a life of luxury, Aria unfairly meets death because of her sister Mielle’s schemes. And right before she dies, she sees an hourglass fall as if it were a fantasy. And just like that, she was miraculously brought back to the past.

“I want to become a very elegant person, just like my sister, Mielle.”

In order to face the villainess, she must become an even more wicked villainess. This was the new path Aria chose to take revenge on Mielle who murdered both her and her mother.

Witnessing her fiance’s derailment with her own eyes, she married a “poor and poor” poor second generation.

The next day, jewelry, diamonds, haute couture clothing, luxury cars and mansions were received softly.

He is a domineering president who is cold-hearted and black-bellied in front of others, and he is also a three-good man who spoils his wife, loves his wife, and loves his wife.

 …

Rumor has it that his cleanliness allergy makes him never touch a woman, but she is a complete exception;

Rumor has it that he is an ascetic man who is so indifferent to strangers that he is extremely gentle in front of her;

Rumor has it that he is generous and neat and never cares about others. After his marriage, he overturns countless vinegar jars every day…

Her married life: sweet, sour, sweet, sweet, bitter, salty;

His married life: Chai, rice, oil, salt, sauce, vinegar, vinegar, vinegar, vinegar, vinegar, vinegar, vinegar, tea.

- Description from novelbuddy