What's your Idea for Demon Slayer: Kimetsu no Yaiba Crossover Fanfiction?

Like what is your Idea for Crossover Fanfiction between Demon Slayer and another Manga/Anime or Whatever Else you can think of is your story long? Does it re imagine the Demon Slayer character? If is a series set in present day how does the Demon Slayer characters get to present day? Or how do the Characters crossovering over get to 1910-1920?

For Example my idea for one is Tanjiro is frozen in Ice his found in 2024 and he wakes up to modern Marvel comic Universe and Nezuko has been alive for 100 years and able to speak normal and even have her own little family but there mission is still the the Same Demon Slayer Corps still active in present and gone global and yes they know difference between a Good monster and Bad Monster Doctor Strange makes cameo in opening moments of Fanfiction after Doom became Sorcerer Supreme

its sorta Samurai Jack meets Ninja Turtles meets Invaders basically

But that's my idea for Crossover Fanfiction what is yours?

Please put Spoiler Bars on any Manga Spoilers

So Lets do this

Art by koyoharu gotouge