Kokushibo's Final Stance
  • Reads 8,186
  • Votes 274
  • Parts 11
  • Time 54m
  • Reads 8,186
  • Votes 274
  • Parts 11
  • Time 54m
Complete, First published Dec 04, 2021
What if Muzan realized that one of his Upper Moon demons had the potential to be stronger than him? That he took it upon himself to give Upper Moon 1, Kokushibo, enough blood to make him strong enough so he can become the new demon king. 

This was just a giant what-if that I was thinking of while reading the manga and seeing how the fight with Kokushibo was my favorite fight in the manga, what would happen if Kokishibo was much more powerful and fought all the hashira including his brother's descendant.....

I know for the upper moon fights and the fight with Muzan I sort of brushed over since that wasn't the main focus I was aiming for while writing this. There will be a giant multi-chaptered fight with Kokushibo at the very end once I'm finished writing this.
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My Boss Is A 1000Years Old Demon Lord|| Muzan X Mitsuki|| Kimetsu No Yaiba by jellysweetcutie
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*** So this is basically an alternate story about Muzan and the heroine I made up, Mitsuki. I'm so sorry for any mistakes, cause I suck at writing. *** Both of them used to know each other when they're young. A 15 years old Muzan fallen in love with a 514 years old demon queen, Kazuki Mitsuki. However his sickness and her demon identity, they couldn't last long, and that's when Kibutsuji Muzan fell into despair, knowing that the love of his life left him. As years past, that despair turns into rage and hatred, and slowly, the caring lord turns into a vindictive and malevolent demon progenitor. Years, decades, centuries.... 21st century Muzan and his family took a business trip to Hollywood because of an agreement of partnership. Two companies collided into one. Muzan, now known as Tsukihiko, is the Chairman of the company. However, the other company has a celebrity star, Miki, last known as Kazuki Mitsuki. Muzan never knows she's the girl he hates because of her name and appearance has changed, and the same goes for Mitsuki. Kazuki Mitsuki, loathes men. She thinks them as pigs. So, where's the fun of not showing them who's boss? She started to have her playerish ways. Two, totally personality changed demon, came from different worlds... However, the only thing that similar is the hatred they had with one another. If you say impossible for them to fell in love, think again
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WARNING: contains spoilers for those who don't read the Demon Slayer Manga Right after the battle of Upper Moon 1, and right in the middle of a battle with Kibutsuji Muzan, a bright light comes out of nowhere and they all black out. Right after the villains attack at the USJ, these strange people come out of nowhere Now the demon hunters and heroes band together to battle against the Upper Demon Moons and the League of Villains (In this, Muichiro, Shinobu, Genya, Rengoku and Oyokata have been brought back to life! How will everyone react to their resurrection? Swear warning!!!) This is my first fanfic so I'm sorry about any spelling errors!! (Characters of My Hero Academia and Demon Slayer do not belong to me)