After her death, an adorably ugly fox came to her and invited her to become a Saniwa. Sawada Harui, who had almost no memories, didn't care much at first. But as time went on, she found that everything in the Honmaru felt strangely familiar. So she began searching everywhere for her lost swords and her memories, embarking on a 24/7 work schedule. (The protagonist is the Sparrow Sister, and the male lead is 27.) (A crossover, tentatively featuring Touken Ranbu, Detective Conan, and Katekyo Hitman Reborn. Touken Ranbu will include a parallel world of female swords.) (I tried writing a few chapters and realized I'm really not good at it, so I removed Jujutsu Kaisen and Bungo Stray Dogs. I'm very sorry.) (Apologies for any out-of-character portrayals.)