AN: An idea where Giyu finds out Nezuko goes to the entertainment district because she sends him a letter and he goes to get her because absolutely not

Nezuko watched in horror as Gyutaro grabbed Hinatsuru by the face. She forced herself to her feet, trying to work up the energy to jump to the roof despite the aches in her body. She could see that Tengen was doing the same, but Daki's sashes were blocking him from getting any closer.

"HINATSURU!" Tengen cried.

She took a deep breath and threw herself into the third maneuver of water breathing, flowing dance, working up her momentum and fighting off Daki's sashes as she jumped up to the roof. She ripped Hinatsuru from Gyutaro's grasp and jumped back onto the opposite roof with an arm wrapped around her waist, sword held at an awkward angle so it wouldn't cut the woman.

And then Gyutaro's head fell off.

"Hah?!" Gyutaro cried, a hand trying to catch his head, but then a foot kicked it straight at Tengen.

"BIG BROTHER!" Daki shrieked.

Tengen caught the head with a laugh, "Tomioka! Very flashy, just in the nick of time!"

"Giyu! It's so good to see you!" Gyutaro's body fell to its knees, revealing Giyu and the furious look on his face, so Nezuko quickly decided to ignore her excitement at the sight of him. "Oh, I think I'll just…" Nezuko released Hinatsuru and turned to look at where Inosuke, Tanjiro, and Zenitsu were fighting a hysterical Daki, "They need help, so-"

A hand suddenly fell on the back of the neck of the kimono she was wearing and she knew better than to move. She grimaced and said nothing, instead watching as Giyu joined the battle against Daki and cut her head off within moments. Tengen jumped up onto the roof next to her and Nezuko looked to see he had a curiously silent Gyutaro held under an armpit.

"Way to come in and take the credit for everyone else's work," Tengen complained.

Giyu turned to glare, but then his eyes widened. "Wait, you need to-"

"Rotating circular slashes," Gyutaro growled, "Flying blood sickles!"

And everything exploded.

"Nezuko!" Giyu.
"Nezuko-chan!" Zenitsu.
"Wake up, kid!" Tengen.
"Mm-mmph!" Tanjiro.

Nezuko debated pretending to be out of it still, but she knew once Zenitsu stopped crying and actually focused he'd be able to out her so she opened her eyes to find several heads hovering over her. Zenitsu sat back with a relieved sigh as soon as her eyes met his, and Tanjiro lifted one of her arms so he could snuggle up to her side and rest his head on her shoulder. And wipe his snot on her haori.

Giyu assessed her wounds and once he made sure she wasn't about to die he scowled, "The entertainment district, Nezuko?"

"I'm injured," Nezuko whined. "Can't you yell at me later?"

"I cannot believe that you thought you could just go and-" Giyu faltered as he thought of a word, "-and infiltrate a place like this! What were you thinking going undercover here? Do you know what could have happened to you?"

"She was helping me!" Tengen butted in, because Nezuko had obviously overestimated his intelligence. "My wives went missing so-"

A blue glare turned on Tengen immediately, "You thought you could just bring my tsugoku to the entertainment district? Trying for a fourth wife, or something?"

"I didn't know!" Tengen defended himself. "And she's a kid! I don't want a kid for a wife!"

"I'm not officially a tsugoku," Nezuko sighed. "And he was trying to force the butterfly girls to do it, Giyu! Aoi doesn't want to fight, and the other girls aren't actually corps members. I couldn't let them do it! So don't be mad at him, alright? Zenitsu told me what this place was and I still came."

"Fine," Giyu conceded. "But I'm telling Kocho-chan."

Tengen finally seemed to realize how much trouble he was in, "Wait! No, you don't need to do that! I realize my mistake now, it was very unflashy of me!"

Nezuko bit her lip to keep from laughing and sat up, jostling Tanjiro and causing him to curl up in her lap instead. All three of Tengen's wives were just off to the side, bandaging Inosuke's chest as Hinatsuru tried to cajole him into staying calm. Makio's head was turned towards them and her eyes were directly on Giyu, a grin obvious on her face. Makio stood up and walked up behind Giyu, wrapping arms around his neck and leaning against him.

"Lord Tengen isn't looking for another wife," Makio agreed, and then her grin turned into a devilish smirk. "But I might be looking for a second husband!"

The matching looks of disbelief and horror on Tengen's and Giyu's faces as they looked at each other finally made Nezuko burst out laughing.