[Demon Slayer] After Coming to the Modern World, We Became a Top-Tier Boy Band

Tanjiro Kamado, Inosuke Hashibira, Zenitsu Agatsuma, Muichiro Tokito, Giyu Tomioka, Sabito, Kyojuro Rengoku, Sanemi Shinazugawa, and Tengen Uzui are suddenly dropped into another world while on a mission. What on earth is this place called Huaxia?! Their manager, Yun Cheng: If you all debut as a group, once you get popular and build up your connections, you'll naturally find your way home. (I'm definitely not going to tell you that you're from Japan.) The nine of them form a boy band called “Demon Slayers” and debut, though they have their doubts. The talent show begins: [People from country R? Have we really expanded our business this much in Huaxia?] [Japanese devils! Get out!] [To the commenter above, calm down. Not everyone from country R is a Japanese devil. Please be reasonable.] [Not expecting much. Can I skip the livestream?] [That chuuni with three wives, isn't that bigamy? Hello? Is this the police?] Some time into the talent show: [Tanjiro! Aaaah!!! His gentle big-brother energy is killing me!!!] [Big bro!!! Big bro Owl!!!] [Sanemi, you tsundere!] [To the commenter above, Sanemi's an explosive tsundere, hahaha!] [Lord Tengen!!! I want to be your fourth wife!!!] [Zenitsu!!! You can cling to my legs, little brother!] When the idols all draw their swords and slay demons, the fans go: ...Holy crap. This came to me on a whim. If I can't write it like this (anime characters in Huaxia?), I'll lock the story. The author's writing is awful. OOC warning. Theme: Talented at everything, and able to slay demons