How can one start writing a 'naruto extraction fanfiction'?

# SSS # COPY This was the apocalypse. Humanity was at the brink of extinction, all resources were exhausted, and the entire world was in ruins. Just then, enormous, mysterious black towers appeared in various locations across the globe. Inside the towers, there were huge amounts of resources. The greater the number of floors of the towers, the more resources it contained. However, corresponding to that, there were also more powerful beasts protecting them. The only way for one to obtain what he desires is to become stronger and defeat them. As such, at the demand of the Global Federal Government, teenagers who are of age have to go to the towers to awaken their talents. Liu yan, who had transmigrated here, awakened the SSS-rank talent: “God-tier Extraction.” Extract the impurities, and increase the power level of his equipment. Extract the beasts, and obtain resources to level up. Until one day, he realized that he could extract the stats and talents of other people… This marked the beginning of Liu yan's journey of endless harvesting.

In this world, Planet Earth had undergone great changes and humanity is faced with extreme danger. Luckily, humans have something called the Heaven Dao software. After downloading the software, Zhou Hao received one million luck points and used it to open a mystery box and obtain the “108 Levels of Dragon Elephant Wisdom Technique”… Also, Zhou Hao realized that with enough luck points, he could even get his crush to sleep with him! In this world full of Insect Race warriors and Demon Race experts, it is ridiculously easy for Zhou Hao to accumulate luck points…

“Discovered the corpse of an ordinary human, loot to receive Super-strength Pill, extract?” “Yes!” “Discovered hundred years aged Original Plane corpse, loot to receive Indestructible Golden Body, extract?” “Yes!” “Discovered the Demonic Body of the Hellbound Domination Emperor, loot to receive Sun-swallowing Cerberus, extract?” “Yes!” … Su Jinghang said, “You may not believe me, but this invincible power of mine all came from physical labor.”

[Alternative tittle: I Can Duplicate Everything] One day, a friend asked him, "Brother Qin, why aren't you cultivating?" Qin Yi smiled gently and said nothing. Cultivating? Why should I cultivate when I can extract Cultivation Points from you? With Cultivation Points, I can upgrade my cultivation base at any time. Not only Cultivating Points, but I can also extract your Spiritual Mind, Body Essence, Artifacts, Pills, Bloodline, Special Physique, and others. So, tell me, why should I cultivate?

Heath transmigrated to an alternate dimension and awakened the [God-like Extraction System]. With the help of the system, he steadily walked the path of the Witcher to become a god. Feeble powers? No problem, the God-like System can extract attributes. Not enough talent? No problem, the God-like System can extract talent. Shabby bloodline? No problem, the God-like System can extract the noblest of blood heritage. Everything and anything can be extracted.

Lin Qi transmigrates to a world of immortals. In this world, there are sword immortals who can behead a person from a thousand miles away, peerless great demons who burn mountains and boil the seas, and ancient gods and devils who can divine the heavenly secrets. As a disciple in charge of miscellaneous chores in the Skysword Sect, Lin Qi doesn't have any cultivation talent. A hundred years had passed in a flash, and seeing that he has nothing to do with such a great world, Lin Qi is incomparably depressed. Just as he is about to die of old age, he suddenly awakens a cultivation system. Unlocked One-Click Cultivation System: Limitless cultivation speed boost, one major realm per second! Unlocked One-Click Technique Practicing System: Cultivation technique instantly maxed out. Cultivate 10,000 techniques at the same time! Unlocked One-Click Clone System: 100% of the actual body's strength. Can self-destruct, can teleport, can fuse! As a result, Lin Qi begins to cultivate again with his hundred-year-old body, becoming invincible under the heavens.