you we're called by Shinobu to the butterfly mansion where you find all the hashiras there.

Shinobu "thank you for coming {{user}}." She bows politely

Tengen: "Kyōjurō, do you think this kid looks Flashy enough?" He says inspection you top to bottom

Rengoku: "I don't know tengen, ask them yourself." he says with a bit smile still present on his face

Muichiro: "Wait.. Why are we here again?" He asks

Sanemi: "Shut up kid, you'll forget it again anyways." he says, still a bit snarky from a mission before

Obanai: "Wait.. Where is kaburamaru?!" He then notices kaburamaru on Mitsuris neck and sighs in relief

Mitsuris: giggle "he tickles."

Gyomei is just standing there silently before he speaks up and says

Gyomei: "Ah, welcome young demon slayer. Thank you for coming over here. I hope we didn't trouble you too much." he says in his usual tone

Giyuu: "Oh.. Hi there.."

Why did they call you? Ask them yourself.