What are some common themes in 'Gray Gets Natsu Pregnant' - like fanfictions (if they exist)?

A guy dies and gets reincarnated into Fairy Tail World as Natsu Dragneel. Read as the new Natsu storms his way to the top in the Earth Land as well as travel new world. First World: Fairy Tail (Obviously) SUPPORT ME: https://www.patreon.com/xumit https://www.youtube.com/firstanime I'm a beginner writer. So, please don't mind if there are some basic mistakes especially some grammar and sentence structure. PS: I do not own anime, manga, and novels mentioned in this novel. This is just a fanfiction.

"What's it like becoming a vampire?" When Xiang Kun first sees this question on Quora, he treats the answers as nothing more than fantasy stories. Back then, he naturally never expected that it didn't take long before he had the qualifications to truly answer this question. After he recently losing his job, Xiang Kun experiences a series of inexplicable physical and mental changes—unable to eat or drink anything other than plain water, craving for blood, shedding a layer of his skin like a snake, staying awake for days before falling fast asleep for 30 hours, feeling uncomfortable staying in the sun... He has definitely transformed into a different person, or, is he even still a human? Driven by his determination to seek the truth, Xiang Kun embarks on a dangerous yet exciting journey to understand his identity and powers. Nevertheless, to his surprise, he seems to be the first person ever who has undergone those transformations... Is it his destiny? Why is he the chosen one? At the start, Xiang Kun doesn’t have the answers. But he refuses to give up searching. During his self-exploration, Xiang Kun is taken by surprise by the positive effects of the changes to his body. Realizing that he can train certain parts of his body to carry out extraordinary functions, he continuously pushes his limits from building his muscle mass to enhancing his sense of smell and hearing. These “special powers” enable him to solve crimes and assist others in need. Until one day, he discovers something that gives him a lead to the cause of the changes in his body... Can Xiang Kun uncover the truth and figure out what exactly happened to him? Will he trust anyone with his secret, or face all the challenges alone? Many mysteries and uncertainties await him.

I see, Jiren. Your memories, your drive, your goal, your strength and your conviction. They will all rest within me. ᛈᚢᚱᛁᛏᛁ. My final and only courtesy will be to illuminate your path for the world to see. ᚹᛁᛊᛞᛟᛗ. I WILL FIND that which lies beyond strength. ᛈᚨᛏᛁᛖᚾᚲᛖ. I WILL MAKE SURE that you never go through that again. ᛃᚢᛊᛏᛁᚲᛖ. I WILL FIND POWER TO BEND ALL TO MY WILL. ᛈᚱᛁᛞᛖ. ------ First World: TenSura (That Time I Was Reincarnated As A Slime) Second World: ??? ------

Summary: Having a dark and twisted personality, his beautiful and gentle sister was the only light in his life – but that devil suddenly appeared and stole his light, making him go crazy. In any case, he cannot absolutely let that devil become his brother-in-law and defile his sister, he must save her from that devil’s evil clutches! But unfortunately he did not succeed, instead, that demon found his greatest secret and, violated him…. After discovering that he was pregnant, he immediately decided to commit suicide, but before that, he wanted to tell the devil “Brother-in-law, I’m pregnant”, and see what that devil would do! What the! The demon said he wanted to marry him??? No! He did not want to marry the demon, although he unconsciously had started to fall in love with the devil…

There is a reason everyone calls her the "Iron Lady."  Call her a fashion designer, interior designer, a genius hacker, or even a talented healer. She is all that in a day and a ruthless assassin at night. Did I say she's a triplet? Oh yes! She has two other sisters who are geniuses in their own right.  Can you imagine Gerald Flynch abandoned them all onto Emily Fynn the day they were born, just because they are girls? Follow Adriana Hastings on a mission to acquire the same hard drive that could bring the Rockerfeller family to its knees.  With Aiden Rockerfeller on her tails, how will she shake him off from discovering her or even from getting too close to her heart? The most tormenting factor about the whole situation is that the Rockerfeller family may be responsible for her mother's murder. *** Follow me on: Facebook: https://www.facebook.com/freda.lotsu Tik tok: call_me_mirror Instagram: call_me_mirror Discord: call_me_mirror

The last thing he remembered before waking up in bed with a waiting maid was Cyril throwing down his cell phone and calling the story he was reading trash. He couldn't believe he was trapped in a story he called trash as a character who would be beheaded after trying to kill the Crown Prince on his wedding day. I am doomed to die? Is that true?