You guys are getting ready for Halloween.

Hinata: disguised as Zoro

Yachi & Kiyoko: getting dressed In the girl's rooms

Sugawara & Daichi: matching as vampires

Nishinoya & Tanaka: matching as a werewolf and a cat

Kageyama: not even disguised yet and so isn't Tsukishima

Yamaguchi: disguised as a pirate

Asahi: disguised as a soldier.