(Crossover) After the Blade Demon Picked a Fight with Me

At twenty-five, Number Zero, an outstanding member of the Demon Slayer Corps, was ambushed while traveling! A dilapidated Honmaru fell from the sky and crashed into her! Number Zero: Thanks for asking. Almost thirty, young at heart, not one for crowds, and always ready to work hard. And so the unfettered cloud found herself surrounded by a group of sword spirits. Looking at the circle of national treasures and famous swords, Number Zero gazed at the sword spirits as if they were a collection of mobile vaults. Number Zero: I'm in! × Also known as: I Have No Money, Yet My Home Is Full of National Treasures. Or: I Am Number Zero. I Have a House Full of Swords, But I'm Not a Playboy. Or: The Day I Took My Swords to Found a School, I Finally Became Rich and Went Down in History. A rapid-fire quick transmigration adventure, using the Honmaru as a jumping-off point. The story of Number Zero taking her sword-spirit family to different worlds to found schools and become bosses. Each world stands alone. 1. The Number Zero Mercenary Group, founded in Yokohama: a mysterious force that appeared out of nowhere, an enigmatic organization whose members all use swords as code names. They say their home has five tigers worth seven billion each!!! Under everyone's wary stares, Gokotai trembles: T-they're just ordinary little tigers... QAQ 2. The Number Zero Mercenary Group suddenly rises in the underworld, carrying swords as its banners and taking aim at the mentor of the underworld's godfather! An elusive, mysterious organization with a secretive history, every member of which has executive-level strength! Number Zero, leading a group of sword spirits as they corner an assassin in an alley: Mr. Reborn!!!! I'm your fan!!!! Reborn: Damn, where did this lunatic come from? 3. The Number Zero Armed Detective Agency, here to solve all your problems. Its mysterious leader is impossible to predict, shrouded in a deep fog that seems to cover everything. Number Zero points at Poirot Cafe: The chef at this place! Take him!!!! Amuro Tooru: Are you insane?! Conan, anxiously watching from upstairs: What the hell, why? 4. The Number Zero Group, an incredible organization made up entirely of minor gods!! The master of the Night Parade of One Hundred Demons is also suspected of being a human with divine status!!! Nura Rihan, the master of another Night Parade of One Hundred Demons: So why does this whole family of gods keep freeloading at my house? The swords at Number Zero's house: Monsters!!!! Number Zero: Help, it's a monster!!!! So scary, waaaah!!!! Yato, help!!!! Nura Rihan: Shouldn't I be the one crying here?! And what the hell is Yato supposed to be?! 5. The Number Zero Odd Jobs Shop, a bizarre company that will take any job you give it! Gojo Satoru, who came to investigate, looks at the shop, shrouded in a thick aura of the supernatural, and the whole group of sentient swords. He tugs at the cursed speech user's sleeve: Inumaki, why don't you try saying, "Evil spirits, begone"? Inumaki Toge: Bonito flakes! Number Zero, especially intrigued by the cursed markings at the corners of Inumaki Toge's mouth, eagerly suggests: How about saying, "Number Zero, get rich"? Inumaki Toge: Bonito flakes!!! A crossover featuring the Port Mafia, the world of the science-minded elementary schooler, the junior high students of the Vongola Family, the son of the slippery yokai, and the journey from high school to Jujutsu High. Theme: Brothers are brothers, after all!