MTL - Marine’s Thunder God of One Piece - ~ No, my head hurts, I'm afraid I'm going to grumble today

Hutson, a man reborn into a ruthless and dangerous world, now inhabits the body of a young hunter in a small barony. With no connections and nothing to his name, he must rely on his sharp mind and cunning to rise through a medieval-like society. As he climbs the social ladder, he uncovers a terrifying truth: wizards, beings far more powerful than any knight or noble, rule over the world. Driven by this discovery, Hutson throws himself into the pursuit of wizardry—a path darker and more brutal than he could ever have imagined. In a world where betrayal lurks around every corner, Hutson seeks what all others desire: immortality. With his intellect and ruthlessness, he will stop at nothing to claim it for himself.

Exile Ren?

The start is hell mode?

Fortunately, there are crossing benefits, and it is still a stitched monster sandbox game system!

Liver Emperor Ren? Hamster Ryan? Isn’t this basic operation?

- Description from novelbuddy

After dumping the Obsessive Tyrant, I was entangled######[Sickly Obsessive Maxim Sinclair VS Cunning Little Fox Summer Lowell]President of Sinclair Group, Maxim Sinclair, is ruthless, unfeeling, and notoriously uninterested in women, never rumored to be with any woman.However, only he knows that the woman bold enough to come undercover beside him, achieving her goal before fleeing, has haunted his sleepless nights for an entire year!Until that day, she unexpectedly returns to the country, parachuting in as the design director of a rival company...“Director Lowell, you used me and threw me away. Did I agree to this?”“Feelings fade, naturally things end. Why must President Sinclair pursue relentlessly?”“Summer Lowell, let me tell you, even if I have to go to hell, I will take you with me!”...People gasp in sympathy, assuming this reckless woman is doomed to a fate worse than death.Little do they know, he has long laid an inescapable net, waiting for her to walk right into it.“I will trap you in a place where only I can see you, forever!”———[The Heroine is Career-Oriented, The Hero is Pathologically Obsessive, Known as the Jealous King of the Demon Capital!]

When a boy in a medieval fantasy world wakes up with the memories of his past life, he discovers a secret buried deep within his mind—a highly advanced AI companion. This AI, a relic of his previous existence, holds the knowledge of a futuristic world filled with technology, science, and innovation.Armed with this unprecedented advantage, the boy embarks on an extraordinary journey to transform his medieval surroundings into a thriving futuristic utopia. From reinventing agriculture to creating advanced cities, he introduces ideas far beyond the comprehension of his peers. But his vision isn't without challenges—power-hungry nobles, skeptical commoners, and ancient magical forces stand in his way.