How can I start writing a 'rottmnt crossover fanfiction'?

Traveling through the Xianxia world, Chen Chen obtained the strongest tracking system and was able to track everything ever since. Chen Chen says, "System, I am short of money." "Two meters away, your father has hidden some money under the bed. Five meters away, there is a rusty copper coin buried half a meter underground." "There is a nugget of silver in the grass ahead." Chen Chen says, "System, I need some luck." "The feces in front of the pigsty is not ordinary." "Go to the Black Peak cliff ten kilometers away and jump off it." "There is an Immortal Cave Abode hidden somewhere, please explore it on your own."

[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?

A chance to change, challenge destiny, make dreams a reality, and live a legend! A regular man gains a system that allows him to turn into a fish! In the modern world, a young man gains an unconventional system that gives him the power to transform into a fish! With this strange power, he shoots for the stars!

Qin Lin was playing a nostalgic game called “Ranches Story” when he was electrocuted. He suddenly discovered that he had the ability to enter into the game. He could even bring a watermelon he had planted in the game back to reality. At first, his plan was to sell watermelon for 2 yuan a catty. In that case, he could earn 20,000 yuan by planting 10,000 catties worth of watermelon in the game every day and selling them in reality. Later on, he discovered that by leveling up his ranch, he could obtain high quality crops that surpassed that of the real world. If he reared livestock, they were of far higher quality than that of reality. After he built factories, he obtained various recipes that far surpassed that of the real world. Everything changed after that.

=== - Translated by: MTLNation (website) - Edited by: Me Link to MTL: https://mtlnation.com/novel/im-in-naruto-double-package-at-the-start/ 2 Chapters every night at 9pm GMT +8 No chapters during sundays === Traveling to the world of Naruto, Shirakumo Hayama awakened his system! He thought he was about to reach the pinnacle of his life, but the system failed! Ten years passed in a flash… Just when Hayama had no hope for the system, in the morning the system was suddenly repaired! In the beginning, not only a [Newbie Gift Pack] was presented, but also a [Failure Gift Pack] was compensated. Two gift packs, double happiness!! Inside those gift packs were...

How I become a Flaming Turkey and how to enjoy it. Oh yeah! I also work for Slutlife Inc for some reason. SI becomes Riser Phenex. Waifu Catalog fic.