What if Tanjiro was a genius? and not just any genius but a cold-hearted one? Read this story and find out how the story would change! This will also most likely be Tanjiro x Harem as well!

♡Hey, I already made one for InoNezu. Why not make one for TanAoi?♡ ♡Any AU I like will be added♡ ♡Tanjiro x Aoi♡ ♡Pure Fluff Zone♡ ♡Expect HCs and Incorrect Quotes♡ ♡Note that some of the art will belong not to me but their respective owners. I might occasionally dabble in my own drawings♡

••• Shinobu leaves her village to find and defeat the demon who took her sister's life. Along the way, she meets Luffy, a young pirate with big dreams. Soon, she becomes part of the Straw Hat Crew's escapades. As the journey unfolds, sparks fly, Shinobu finds herself drawn to a certain green-haired swordsman, deepening the intrigue of their voyage. Date Started- 09/12/23 Date Ended-

In the world of Demon Slayer a young prodigy named Tanjiro Kamado has inherited both the wills of his ancestors Yoriichi Tsugikuni and Michikatsu Tsugikuni, on his journey he met a swordsman who wields three swords then another wielding a sword and a musket? Now Tanjiro and his new friends set out a journey to defeat Muzan and bring peace once more to the world.

In the world of demon slayer, the main character, a young boy named Tanjiro Kamado was always the beacon of hope for those around him. His warm smile and presence that always gravitates a sense of love and compassion seemingly allowing him to change the lives of everyone for the better. Furthermore, his righteous goal of reverting his little sister back to human as well as defeating the dreaded demon king Muzan and ridding the world of the curse that is the progenitor of all demons and avenging his fallen family. However what if the story didn't revolve like this? What if Tanjiro was unable to traverse the mountain on that fateful day due to a sickness or broken leg and his little sister Nezuko was the one to do so instead? What if Tanjiro was taken by the demons and turned into one? Would he remain good? Or would he join the side of the demons and fight against humanity? Let's find out. I do not own Demon Slayer or any of the characters.

Tanjiro comes home to find his entire family dead. He was later found by Giyuu and was sent to Urodaki to train to become a demon slayer. But after he got their he got dreams of someone with hanafuda earrings(Yorrichi) performing a breathing technique he heard him call sun breathing that looked very similar to his family dance. After he told Urodaki about this he immediately told Tanjiro about sun breathing and that only one person was able to do it. After seeing that Tanjiro cam actually use sun breathing he immediately told him to train and train more in this breathing technique. Over the next two years Tanjiro would get the same dreams and has learned how to perform the 12 moves flawlessly and is still training to do the 13 form. Read the first chapter for more information.