Mr. Yiyong's Way of Solving Problems [Demon Slayer]

Teacher Giyu arrives in the wondrous Taisho era. Giyu: Having experienced modern civilization, it's time to show them the true art of language. Everyone gets a happy ending, including the scumbag next door. The old scumbag just finds a different way to be awful. The setting is explained in Chapter One. The original was painful enough, so my fanfic is going to be sweet. Let's just have fun with the silliness! I thought about it, and if we're going to be silly, we should definitely pick on our adorable, clueless Tanjiro! And of course, the old scumbag too. Major OOC! Don't think too hard about it, qaq. This is a story where everyone dotes on the protagonist (I swear), otherwise they'd have beaten him to death by now (laughs). Theme: A happy ending for everyone