Naruto: Reborn as Kakuzu, the Immortal Assassin

This story unfolds during the later stages of World War II, where a man, scarred by the horrors of war, finally grasps the profound and harsh realities of the world. In this world, those at the top laugh and celebrate, while those at the bottom sacrifice their lives in futile conflicts driven by pride and meaningless ambition. A modern soul transmigrates and fuses with the original soul of a body, creating a unique and extraordinary existence. To some, he is a villain; to others, a madman. In a world steeped in cruelty, this man, determined to secure a place among the decision-makers, struggles to break free from the ranks of those powerless to control their fate. To achieve his goal, he resolves to shatter the chains of law, then the chains of morality, and finally the chains of mediocrity. It's available on Patreon for 1/8th of the price here on the web. It's also split into multiple parts, so you don't have to buy the whole book at once for that price.

A high school student who believes that reality is merely an illusion begins to witness strange and unexpected events as the school year starts. At first, he assumes these occurrences are just tricks of his own mind, but over time, he starts to realize that there is a deeper and more mysterious truth behind them. While the people around him seem lost in the mundanity of everyday life, he is keenly aware that something is not quite right.

Everyone thinks getting reincarnated in a fantasy world will improve their life but it's not always the same, Atleast not for pratham who gets reincarnated after dying from hunger into a completely different multiverse, where the greatest threat to humanity isn't demons or magical beasts but Entities. To fight back, the human and alien races of each universe have united to form their Own Entities Hunters Organization (EHO). In this multiverse, where magic is everything, Pratham now known as Leon, is born without any magic power. Determined to protect his little sister, he sets out to become the strongest Entity Hunter ever and takes his first step by joining the Entities Hunters High School (EHHS).

… “Is something wrong?” He sighed. He stayed quiet for a few seconds before he spoke. “I don’t think we should continue this partnership.” His tone sent chills down my spine.  “What do you mean?” I questioned. “Your feelings,” he said ‘feelings’ like the word disgusted him, “have changed and it no longer aligns with the agenda.” “How dare you? Who gave you information that helped get your company back from the Gulfs? Who was it that kept feeding you information about the Gulfs businesses. It was me.” I yelled, my tone no longer friendly.  I’d met Gabriel when he had recently lost his company to Christian. He was at the brink of bankruptcy and Christian had made him an offer he couldn’t refuse. He’d been stupid enough to sign a contract without reading it because he was desperate, and ended up losing more than they’d originally agreed. “Now that you have your precious company back and some shares in the Gulf enterprise you think you can dump me with a stupid excuse like our motives no longer align? Don’t you fucking dare. I own you.” I shook with rage, ending the call before he had a chance to reply to me. My rage immediately became fear when I turned around and saw Christian standing by the door in my room. “So you did take me up on my offer.” He was smiling, and the contrast in his words and demeanor only made me more afraid. 

Reincarnation in the Naruto world. Orochimaru's test subject. Please note: This is a translated version. All credit and rights are reserved by the original author. Original: 从忍界开始变革 作者：红叶知玄 patreon.com/Shinobi_Scrolls -70 Advance Chapters

Aaron travels through the Marvel Universe and acquires a “Melting Pot,” which can refine the properties of all things to conceptually enhance himself! ~~~ [Original Name:] Patreon(.)com/Bleam — Currently You can Read 20 Chapters Ahead of Others!

Choi Lina was betrayed by the very people she once called family. Devoted and selfless, she spent years supporting them, only to be repaid with betrayal and abandonment. Her fiancé was unfaithful, her parents resented her, and the truth shattered her world: she was never the real daughter of the Choi family. At eighteen, the rightful heiress returned, and Lina’s life spiralled into misery. At twenty-four, Lina died heartbroken and pregnant, her final breath stolen by the people who destroyed her. But fate has granted her a second life. Now back in the past, Lina is no longer the naive girl she once was. This time, she’s determined to reclaim her worth and uncover the love she once ignored. This time she will write a new story—one where she chooses herself, her happiness, and a love that never truly faded. This is her rebirth. This is her rewritten love.

In his previous life, he was a master strategist, a war general feared for his genius, but betrayal ended his reign before his time. Now, he awakens in complete darkness—trapped, immobile, and… no longer human. Reincarnated as a Dungeon Core, the heart of a newborn dungeon, he must now navigate a world where survival is dictated by power, mana, and the strength of the monsters under his control. With the Dungeon System guiding him, he learns to shape his domain, summon creatures, and set deadly traps to lure in adventurers seeking fortune and glory. But this world is far more dangerous than he expected. Rival dungeons seek to devour him, empires send their champions to destroy him, and the gods themselves whisper in the shadows, watching his every move. To survive, he must evolve his dungeon into something beyond what this world has ever seen—a fortress of nightmares, an empire of monsters, and a force that even the gods will fear. The war for survival has begun. The world sees him as an abomination, a mindless entity to be erased. But they have made one fatal mistake… They think he has no mind. They think he cannot plan. But even as a Dungeon Core… he remains a strategist. And this world? It is now his battlefield.

A world without gods struggles against cunning and dangerous monsters from another realm, teetering on the brink of collapse—until… Silvanus never expected to die at the peak of his glory. He was on stage one second, accepting his third consecutive Best Actor award. The next, he was dead—crushed by a falling glass stage light in a tragically ungraceful demise. But the worst part was yet to come. He didn't indeed die. Instead, he woke up in an entirely different world, one on the verge of being swallowed by darkness due to an overwhelming invasion of monstrous creatures. [Beep—Acting System activated! Greetings, my god. Please create your character and start collecting Acting Points!] Thus, humanity discovered that they now had gods, divine protectors who guided them in their battles against monsters… A god who feared everything yet could foresee the future. A narcissistic deity who commanded water and life itself. A depraved being who, despite his corruption, remained undefeated against even the strongest creatures. No one knew they were all the same person. "Worship me. Believe in me without end. And one day, I shall truly descend upon this world…"

Kang Hong, an underrated author, wrote a webnovel "Desired End" about an endless dream, which quickly became popular. But that fame was short-lived—after a few chapters, readers lost interest, deeming it “boring.” Kang Hong didn't give up, continuing at his usual pace. Eventually, he ended the novel in a way he didn’t want to, and guilt consumed him. He blamed himself for ruining his own creation. He went to sleep... only to wake up in a world that seemed eerily familiar. Monsters, humans with horns, sea dragons, and more—everything felt straight out of his webnovel. As events unfold, Kang Hong realizes the horrifying truth: he's now living in his own story, Desired End. But it’s not just him. The entire world is part of this endless dream. How will Kang Hong survive? Armed with knowledge of the future, how will he use his insight to navigate this chaotic world? Will he encounter the Main Protagonist of his novel? What kind of endless dream is this...? Well, it’s a system-based dream. Keep reading to uncover the secrets behind this Endless Dream. — Coffee Shirone