What is the nature of fiction in 'Island of the Blue Dolphin'?

> Mature content. Contains intense scenes not suitable for readers under 18. The world ended. His wife betrayed him. Now he’s stuck on a tropical island... with twelve beautiful women—and a deadly secret beneath the sand. Jude thought escaping the zombie apocalypse on a cruise ship was salvation. He was wrong. After a cruel twist of fate leaves him stranded and betrayed, he wakes up on an island that seems like paradise—but the truth is far more dangerous. He’s not alone. Twelve mysterious women. No way out. And the undead? They're not the only threat hunting him. Will Jude survive the secrets of the island… or become part of them?

After the nuclear war, the world was controlled by twenty mega-corporations that established a global government. Governed by AI, it judged everything. Gao Xin, who had only wished to live a peaceful life, inexplicably became a scapegoat for the elite and, unable to pay the imprisonment fee, was sentenced to ten years of exile on Crime Prison Island! On this island, there were no laws, no constraints, the only order being the numerous game arenas set up by the officials. The criminals could only participate like racehorses for the entertainment of the elite. Yet, on this prison island filled with Radiation, cyborgs, and many powerful villains, Gao Xin had no strength, no talent, and no background—like a sheep thrown into a crocodile pool, no different from being on death row. How could an ordinary person like him survive under the oppression of the strong, the geniuses, and the wicked? Unless in this world, there was a path, a path that allowed even the weakest to continuously break their shackles.

Sacrificing his life to protect his best friend was a decision which Hui Yue did not regret, yet who could have known that death was not the final destination, but rather the beginning of a new adventure into a world filled with demonic beasts and martial arts cultivation. Hui Yue soon found that within this world, strength was what determined your future accomplishments and there was no space for the weak. Embarking upon this new life, Hui Yue meets friends, experiences betrayal, and starts his own journey of cultivation to overcome his limits and become strong.

After being set up, Ye Bei succumbed to his injuries and died. He awakened, only to realize that he had transmigrated into a python on a deserted island! In order to survive and avenge himself, Ye Bei began to evolve step by step from a small python. Now, placed in the Amazon jungle, death awaited him at every turn. Giant Pythons that could swallow the sky, Golden Beasts, massive dragons of old, real dragons…! And this was only just the beginning– Consuming prey triggered evolution. Hence, he continuously consumed prey to evolve even further! It didn’t matter if they were Captain America, the Hulk, Alien, Predator, Ultraman, Godzilla, Superman…

The nuclear war destroyed the world, and I was spared when I was taking the girl group on vacation. On an inhabited island with seven gorgeous beauties, I had become the only man on the uninhabited island. The most disagreeable assistant had become the sweet cake among girls. The popular actress sought after by thousands of people could only hold me tightly and warm themselves in the most primitive way. There were many dangers on the uninhabited island. Fortunately, I can add skills to myself. As long as I breathe, I can get experience points, which can add to my life skills. When the beauties tried to drill wood to make fire, I had already lit a bonfire. When they ran away because of meeting the wild boar, I had already crouched in the grass with a self-made spear and been prepared to launch a fatal blow at any time. Whether I was hunting or cutting trees, I could obtain the experience points of survival. Experience points could be exchanged for a new skill of survival, and I could also give the skill upgrade. After I could provide survival skills upgrade. Life on the uninhabited island has become colorful, but it was a little difficult to deal with the seven girls. This was the annoyance of happiness.

Humans of Earth were transported to the Divine Sky Realm, a world brimming with fortune and danger. In this celestial domain, humanity now dwells upon floating islands, ascending as rulers. When else will you get the chance to be a king and vie for supremacy? The system bestowed powers upon chosen individuals, granting limitless luck. Lein, an ordinary office worker, received the SSS-rank talent - Infinity Duplicate. There was nothing in this world that he couldn't duplicate, not even god-tier materials. The path to becoming the strongest lay before him. Yet, Lein knew all too well that it required a process. Even the gods needed a process to create the universe. The Divine Sky Realm offered a fantastical life that Earth's humans had always dreamed of. Soaring through the skies, shattering mountains, rising to the pinnacle in all endeavors. But humans remain humans, wherever they are, driven by their innate nature: greedy and unaware of their limits. Humans believed they were the sole inhabitants of the universe, thinking only they received the system's fortune. But reality proved otherwise. Other races in the universe were granted the same blessings, without distinction. In fact, the human physique was considered low-tier. Races like the Wood Elves, Dwarves, Goblins, Dragons, and countless others possessed bodies that defied the heavens from the outset. Could humans survive in the Divine Sky Realm? We can only hope for the best. The humans found themselves in a realm where dreams and nightmares walked hand in hand, a place where every desire and fear took form. Floating islands became their new kingdoms, a testament to their newfound power and ambition. Lein, an unremarkable man back on Earth, now wielded the power of Infinity Duplicate, a gift that could make him invincible.