What could be the scariest elements in a dump in the dark story?

Dead tired. Literally. Our protagonist finds himself talking to God and ready to go into a different world of his choosing with some perks. Into the Naruto-verse as a Saiyan.

The MC is reincarnated into the world of TVD with 4 wishes. Warning I am writing this to pass time and for fun.Also english is my second language so obviously it will be horrible and don't expect perfect chapters.

When I died I didn't expect to wake up with dark beings of immeasurable power looming over me. I didn't expect to be given new life in a brand new world. Now, armed with a powerful system that makes me stronger after every fight, I might be the last thing standing between the multiverse and absolute annihilation. As I complete quests, defeat foes and become stronger, I still don't know if I'll be able to save this world, my old world and all the worlds in between. "And below... the MAW beckoned..." Come check out the discord to speak to the author and other readers: https://discord.gg/BEJgcRVVev

After saving a person from Truck-kun, the damn truck went rogue to kill me, and sent me to the void to be tortured. But Creator took a pity on me and saved me. Gave me some wishes and sent me to different version of Marvel world. ------ My first novel and of course English is not my first language. And the update won’t be regular. Tags: Reincarnation, System, Marvel, Harry Potter, Supernatural, R-18 Disclaimer: I don't own anything, not the cover, not any of the stories that I used. Not even my OCs! don’t sue me. Just a fan fiction. Chill.

The story is about a guy who got a second chance at life and greatness. This story doesn't belong to me. English is my third language, so I'm sorry.

*Warning: High level of Bullshitting* Sid was your typical average person. Spending his days in front of his computer while reading Fanfictions and searching for something to appease his boredom. One day, he left his house to buy a few snacks, however, on his way to the store a flying anvil appeared out of nowhere and smashed his head against the ground, killing him instantly. Seemingly being chosen by GOD for no special reason at all, he is given three wishes and a mission to kill an evil anomaly in One piece world. An anomaly with absolute power and incredible strength that could even make the four Yonkō tremble against its presence. Sid, now with a mission to kill this absolute horrifying being, and his desire to become a hidden power in the shadows like a certain guy with the same name as him did in a manga, trains to become the strongest transcendent existence at night, and acts as the most normal mob character at day. The most dangerous pirate, the strongest admiral, the most revolutionist Revolutionary(?) Why be just one when you can be all of them and a normal marine side character at the same time? This is the story of a seemingly "Normal" marine. Training and becoming the strongest man alive, without anyone noticing! ° ° ° One piece is not mine, just in case you didn't know... I just own the MC... I think? iThe cover was made by me B) In case you have read "Kage no Jitsuryokusha ni Naritakute" and the adventures of Shadow-sama, then just so you know, MC is not the same as that manga, they just had the same name because I couldn't come with a better name. Also, MC will not be as dense as Sid was... maybe. Anyway, that's all. Hope you like it!