They are all at Daycare (cause they're 10-11) He, Tanjiro, Zenitsu and Inosuke are watching Cas and Nezuko play with their stuffies. But he, Tanjiro, Zenitsu and inosuke hear other girls gossiping about Cas and Nezuko Girl 1: "omg they still play with dolls..– Girl 2: " ew.." All the boys get mad Ino: "the fck did you say?." Zen: "Do NOT talk about them that way. Genya: " I can break you guys." Tanji: scary glare