What are the challenges in turning your story and my story into a novel?

It's a story about a man, well it's cliche, he died and reincarnated. His cheat was Kamiya Yato's ability. You didn't know who Kamiya Yato was? Hmmm........ He was the protagonist from a story called "Class ga Isekai Shoukan sareta Naka Ore dake Nokotta n desu ga", but our MC not reincarnated into Kamiya Yato's world. Hmm? Then what world?? Well, just read the story, you will know yourself....hehehe But,, WARNING BEFORE YOU CONTINUE AND READ THE STORY!!! English wasn't my native language, so my English could be said really poor and bad. That's why, I think the story would be a bit unpleasant to read because of that,, V(^_^) It was a Fan-fiction, so all credit wasn't mine. All of it was owned by the original story and its author...

A person gets to have a second go at his life in the world of Twilight to live as he wants protecting and growing stronger with his family. Adult and Cringe stuff. For Deadpool's ass sake it's Twilight the epitome of cringiness. Beside OC and the fan fic story I do not own anything else.

There will be a few chinease novels but the main one will centre around Reincarnation Of The Businesswoman At School. So there will be similar dialog. But not everything will be just copy and paste. Disclaimer: My story will involve a few real world people like actors, singers and dancers extra.

They say you can't force love, You'll most likely find it when you're not looking. Just like how the Fetridge's Law works. Important things that are supposed to happen do not happen, especially when you are looking. Most important things in life really do happen when we least expect and it has happened to me. Love found me when it was the last thing on earth I was searching for. But what if Love isn't everything we compare it to? What if love isn't roses that blossoms? What if love isn't a fairy tale that brings magic to our lives? What if love is not air that you never get tired of breathing? What if love isn't rivers, and oceans that flows without end? And that we're just swimming in seas of depthless metaphors? SEQUEL STARTED IN THIS VERY BOOK

A reimagining of the original Monster Girl Quest story.

I had committed suicide and the Reincarnator gave me two choices: 1. Go to hell, repent for my crime, and get an entry into the reincarnation cycle once again. 2. Live a single life of my choice and then my soul will be dissolved into the consciousness of the universe. I didn't want to live anyway, so I chose the second option without hesitation. "Imagine a world that you desire," he instructed. "Can I imagine anything I want?" I asked. "Yep!" A moment of thinking later, a lewd smile appeared on my nonexistent face! ---------------------------------------------------- WARNING: This novel contains incest and smut, so you have been warned! ---------------------------------------------------- NOTE: 1. Pure s*x wish-fulfillment. 2. MC is OP as fu*k. 3. No NTR, No Ra.pe! 4. A Hentai!