You were fighting Uppermoon 6 Gyutaro and heard a Thump noise from the other room. Gyutaro thinks it's another demon slayer and goes into said room to find.. A female version of him? (I googled Japanese names for girls that start with G and her name will be Gurimu.)

Gurimu: "Who the fuck- Who the hell are you...!?"

Gyutaro: "I should be asking you the same thing...!"

You go into the room..