Isekai: I'm The Only One Who Can Go Between Both Worlds

⸻ In one moment, he was walking down the street with his little sister— In the next, he had traveled to the world of One Piece, carrying a system that could extract, record, and fuse genes to cultivate powerful lifeforms. Thus began a leisurely and carefree life in the most chaotic world imaginable. When bored, he’d snatch a bit of heavenly tribute meant for the Celestial Dragons. When curious, he’d raise a few cute kittens and bunnies just for fun. When restless, he’d wander through the territories of the most fearsome powers in the New World. Life is beautiful—so why bother taking anything seriously? ⸻ Raw :- 海贼之基因怪才

Masachika and his friends has gone through many ordeals during their high school years and finally graduated. However... A massive alien invasion from interstellar beings calling themselves part of the Oracle fleet has sent the world towards downward spiral. Humans opposing the aliens invasion formed the Anti-Alien Alliance or A3, but was quickly defeated. After being frozen for 50 years, will Masachika be able to regain his old happiness in the brave yet alien, new dystopia world? Additional Tags: Romance, Harem, Sibling-Incest, Sexual Content, Possessive Behavior, Voyeurism, Sadism, Masochism, Yandere, Pregnancy, Abandonment, Emotional/Psychological Abuse, Master/Servant, Death, Violence, Military, Politics, Forced Abortion, Cyborgs, Androids, Dystopia, Aliens, Alien Invasion, Body Modification, War, Post-War, Porn, Mecha, Suicidal Thoughts, Virginity Loss — Disclaimer: The characters, settings, locations, images and cover pictures used in this fanfic are the property of their respective creators and/or copyright holders. This fanfic is a non-profit work, created solely for entertainment purposes, with no intention of infringing any copyright.

On the night of his coronation, Prince Aremo of Odanjo was betrayed and left for dead by the brother he trusted most. But death was not his end—it was his beginning. Reborn as a commoner named Ayomide, with no memory of his royal past, he lives a humble life—until strange dreams, forbidden powers, and whispers of forgotten gods begin to awaken something deep within. As he rises through ancient warrior ranks and uncovers the truth of his bloodline, Ayomide must choose between love and vengeance, destiny and freedom. The crown he lost is calling… but so is a prophecy of doom. Will he become a savior, or the curse that ends the kingdom forever?

On the vast sea, Aokiji stopped a ship. After a great battle, Aokiji smiled helplessly, “Hey! Brother! Don’t waste your efforts! I am a natural-type ability! You can’t beat me of!” Before the words were finished, a sword qi flashed across, freezing thousands of miles away, the frozen Qingzhi’s head crashed immediately, I was afraid that I ate a fake frozen fruit. In the second half of the great route, Huang Yuan hummed incoherently, “Brother! You said you are faster than me! I’m so embarrassed!” Before the words were finished, a figure stood on the flying sword and fled thousands of miles away in the blink of an eye, leaving behind a bewildered yellow ape fluttering in the wind. Kaido: I am a blue dragon! Someone: Sorry, my sword is also called Dragon Slayer! … This is a sword story, but also a legendary story! Of course, it is also a miracle that happened in One Piece.

From an ant-like mortal to the uncrowned king of the metropolis, Chu Tianyi's ascent began when the celestial Tome of Heart Hunting descended upon him. Now wielding the power to dissect human desires and manipulate hearts, he erects skyscrapers of power with a snap of his fingers, his iron-fisted sweep reducing old regimes to dust. When clashing with the siren of destiny atop financial citadels, his every move sends shockwaves through global markets, forging his throne from the molten gold of conquered empires. Yet the crown proves but the prologue to a cosmic game. As ancient financial dynasties controlling civilization's lifeblood emerge - even star-forged entities observing mortal affairs from celestial heights - Chu Tianyi becomes the ultimate gambler. With the cosmos as his chessboard and his soul as the wager, he dances between godlike adversaries through universe-shaking gambits. Beyond protecting his loved ones, he must unravel the Tome's ultimate secret and the path to transcendence, determined to wrench destiny's reins from indifferent cosmic hands. This is the saga where a mortal defies heaven's order - methodically hunting hearts, seizing thrones, conquering nations, and ultimately stalking fate itself across the chessboard of existence!

Synopsis Carlos, the cold and ruthless CEO known as “The Demon,” has no room for emotions in his meticulously controlled world. Evelyn, a spirited yet down-on-her-luck heiress, has been left homeless and penniless after her stepmother’s betrayal stripped her of everything. Their paths collide when Carlos presents Evelyn with a chilling ultimatum: a three-month marriage contract that promises her freedom—or her ruin. Initially terrified by Carlos’s icy demeanor and unyielding authority, Evelyn is determined to endure the agreement. But as weeks pass, her natural cheerfulness and unshakable confidence begin to chip away at the walls surrounding his heart. Carlos finds himself drawn to the very things he thought he despised—her resilience, her warmth, and her refusal to be intimidated. For the first time, he wonders if there’s more to life than power and control. What begins as a cold transaction transforms into a story of healing, trust, and unexpected love. But with the clock ticking and their worlds pulling them apart, can Evelyn thaw the heart of a man who never believed in love?

[A fallen S-Class Hunter dies and becomes an Alien Mom?] *** Navi was supposed to die after saving the world for the second time. But when she opened her eyes, she found herself on a different planet, with five little aliens that she decided to raise until they became humans. Just when she thought she succeeded as an alien mom, she found herself back in her previous world... ... where nine years had already passed. The good part? Her alien babies came with her! What's a former hero supposed to do after returning with five "kids?" Simple: use the children's unique abilities to save the world for the third time. To do that, she has to help her lovely alien children become idols. It's not her personal agenda to raise them as idols, okay? Her babies just literally have the voice that could save the world! Anyway, she's supposed to do that in secret. However, Hunter Won Yiwon— her old rival (and ex-crush)— suspects that she's the same 'Navi' from the past despite her change in appearance. And that's where the problem begins. Navi just wants a glamorous life with her soon-to-be idol alien kids, so why does Yiwon keep dragging her back to the Hunter world that she had already abandoned?! *** #rivalstolovers #hunters #system #aliens #hiddenidentity #lettheheroinelivequietly!

The protagonist transmigrates and becomes Brook, who was still in the depths of hell 52 years ago, and successfully revives! What’s that? Charlotte Linlin was just a 16-year-old wandering girl pirate? Recruited! Edward Newgate is only 22 and still an unknown pirate in some crew? Recruited! Shanks and Buggy follow after? Recruited, recruited, fully recruited! Time to head to the Kingdom of Germa and find more... I’ll recruit all the future powerhouses of the next era!!! ... For each review +1 chapter

I was having fun on this school trip, except some people were annoying. I thought today everything would go well. Then I saw the most beautiful pair of blue eyes. After that, everything went blank Where was I? I was in another world, and everyone looked familiar, except it looked ancient. Defeat the Demon lord, no way? I don't want to die. We were sacrificed, but why were we summoned then?

An ancient proverb from the Homo sapiens era once stated, "Light and darkness can never be united because they are natural enemies arranged since the creation of the universe." The statement seems plausible, yet it may contain inaccuracies... —————————————— Leon Kruger, a 22-year-old man counted among the three of humanity's heroes, is dispatched by the Holy Empire of Mankind to invade the territory of the Demon Empire—an enduring adversary of humanity for over 7000 years. Wielding the Great Holy Sword Zenith and commanding a legion of thousands of holy troops, he leads the raid on the Desert of Chaos, facing the elite armies of the Demon Race with unwavering valor. Even, he engaged in direct combat against the Demon Emperor, who was actively leading the war on behalf of the Demon Race! Unfortunately, he never foresaw that his offensive was a cunning scheme orchestrated by the Emperor of the Holy Empire. The emperor aimed to eliminate Leon, perceiving him as a threat to his position as the ruler. Furthermore, unbeknownst to him, he had been poisoned before setting out for war, leading to a catastrophic defeat at the hands of the Demon Emperor and resulting in his capture as a prisoner of the Demon Emperor. Envisaging torment at the hands of the notorious Demon Emperor after his capture, he was surprised to find that this foreseen ordeal did not come to pass! The Demon Emperor, unveiled as a remarkably beautiful woman, unexpectedly and without apparent cause, asked him to be responsible for abandoning their triplet daughters?! "Nani! Since when did I have triplet daughters with you, smelly demon woman?!" Not only that, Leon gradually realized that an increasing number of women were approaching him to claim the love debts he had unwittingly accumulated in his youth. "Wait! Hold on! Please be gentle! Both my kidneys are nearly tapped out!" —————————————— #Tag: #Action #Adventure #Harem #Slight-Harem #StrongToStrongest #Romance #Demon #Elven #Hero #Dragon #DaughterLoves #Revenge #Anti-Hero #Handsome-Male-Lead #Beautiful-Female-Leads #SliceOfLife #Unhesitate-MainCharacter #Yandere #PossesiveCharacters #PhsycopathCharacter #HateToLove #Comedy ------------- 400 PS this week = Mass release of 5 chapters! 700 PS this week = Mass release of 8 chapters!