I heard that there are some doomsday sci-fi novels that I can recommend?

You should know how it goes, I died, met a ROB, got some wishes, before getting reincarnated in a world of my choosing. Let's get started shall we? ----- In case you didn't realise, this is a Tensura Slime fanfic. I don't consider myself a veteran writer, so if you have any feedback I would be glad to read them. Don't expect a flawless plot line. I don't mind you guys making a bad review but at least let me know what I did wrong. I own nothing except my own characters. The cover pic is something I found off google, if you want me to take it down just drop a comment. https://discord.gg/ephtQTTdxt

"Game user confirmation." -Currently game user : 1 "……." The 1 person the system mentions is me. That is how I could tell that this game will fail as well……. Juyeong Hong enjoys playing games more than anyone else, and is captivated by one which yields as much as the effort he puts into it, unlike his studies, where he has made no progress no matter the effort. Juyeong has bet nearly his entire life on the game and applies to be a beta tester. He is accepted for the game “Forgotten Legend” which has not been officially launched. Juyeong played with more effort than anyone and had a lot of fun, but there were seemingly no other players who had enjoyed it, so the game disappeared without a trace. Only three closed beta tests had been done ……. Moreover, the last closed beta test involved Juyeong Hong only. Then one day, the game returned, under a new title “Revival Legend.” Then suddenly, for some unknown reason, top companies around the world begin wanting to own the rights …

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!

When Su Mu woke up, he realized he had been transmigrated to a game and became the lowest-ranked NPC, a farmer. In a world of endless war, Su Mu would not be able to protect himself as a farmer. However, he suddenly came to realize that he could change his job as many times as he wanted. In his first job change, he became a Militia and gained the ability to fight. In his second job change, he became an Archer and gained the ability to make long-ranged attacks. In his third job change, he became a Lancer and gained the ability to pierce armors. In his fourth job change, he became a Heavy-armored Knight and gained the ability to switch between defense and attack with ease. In his fifth job change, he became a Holy Knight and gained the power of Holy magic. Su Mu completed countless job changes and managed to gain infinite power. When the game and the real world merged, Su Mu was already the renowned Dragon Rider that had conquered lands and built the strongest kingdom to have ever existed.

An F-rank Hunter. That too, a useless, pathetic F-rank hyung who dragged down his amazing S-rank brother. To me, who’d halfheartedly lived a disastrous life that’d ended up devouring my brother’s life and making me regress, the title given, was… ‘Perfect Caregiver’ That’s right, this time, instead of fussing about myself, let’s quietly look after those amazing bastards… …was what I’d thought, but the S-ranks are… a little weird. Author:Geunseo Rating: 8.9/10

A man dies and reincarnates into Bleach....the worst place to be reincarnated in if you don't have Plot armor or some System. And our Mc has neither.... well he does have the most overpowered Unique skill but we arent talking about that.