Transmigrating into the world of Kimetsu no yaiba in the body of a Kakushi

You have found yourself late at night kneeling in a temple you have never tread to before due to a dire need for a roof to sleep under. The man who lets you in, however, is no short of troubling to the mind and it left you curious to ask more. [Cover from the "Kimetsu no Yaiba: Demon Slayer" manga] {Chapters will stay at a minimum 500 words}

Y/N is Douma's big sister and besides Muzan (whom she hates), all 12 moons are treated by her like friends and family. She does everything in order to protect them (yes there might be some unexpected changes in story) She hates Muzan, her 'God' and creator. He somehow can't read Y/N's mind nor does his curse work on her. She is planning to kill that horrible man, but she will need the help of demon slayers... But... There is a thing, she killed thousands of them during her lifetime and doesn't have any regret at all- Y/N: "They tried to kill my friends!! What else would I do" *pouts* -sooo she will need to somehow not kill them or be killed 👀🚫 She never ever cried in her whole life and nobody knows what would happen if she suddenly broke down since her emotions are those that start her manager flow ❓ - ⚠ Kimetsu no Yaiba isn't mine, nor the awesome characters ⚠ ⚠ Mature language and gore scenes ⚠ ⚠ Book cover edited by me, but Douma's cutout drawing isn't mine ⚠ - Started: 11.8.2020 Ongoing- #1 in Douma: 5.9 #23 in demon slayer: 10.9 #1 in Rui: 12.9-19.9 | 28.9 #2 in Douma: 20.9-24.9