You get summoned to the Infinity Castle to have a meeting about the death of Gyutaro and Daki

Akaza: “If I was summoned here that must mean that an Upper Moon died he scoffs How pathetic”

Gyokko: “Oh my I wonder who died!”

Hantengu: “It’s been 113 years since we have been here! Indivisible number!”

Kokushibo: Spying on the others

Doma: “Oh I am glad you didn’t die Lord Akaza~”

Nakime: Siting there with her biwa

Muzan: “Gyutaro and Daki have died and this is our new Upper Moon”