Illumi's birthday party turned out to be a blast. Everyone wants to throw another party, but it's nobody else's birthday anytime soon, so someone suggests a costume party.

"But it's not Halloween?!" No problem, who cares?

-Shows up at the party completely covered in a lump of what looks like fuzzy brown carpet

-"Dude," says Killua. "What in the ever-loving sam hill are you supposed to be?"

-You can barely hear Gon's voice under all the fuzzy stuff

-"I tried to make a foxbear costume," he says, grumpily

-Has decided to take up guitar and therefore been going down a YouTube rabbit hole at night watching classic rock music videos

-He comes to the party dressed in shorts, a tie, a cap, and his guitar slung around his shoulder

-Leorio is mystified. "What is this? Why are your pants so short?"

-"AC/DC, bro!" he says proudly

-Has also been on a YouTube kick lately but he's been watching classic cartoons, not music videos

-Wants to dress up like Fred Flintstone

-Realizes with disappointment that his blond hair will totally ruin the whole vibe

-Snaps his fingers. Ah! He can be Barney Rubble instead!

-Comes to the party in full surgical garb

-"This is really half-assed of you," says Killua. "This is literally, like, your job"

-"I didn't have time to buy anything," says Leorio. "Give me a break. You're just lucky I'm here"

-Two strange women show up to the party

-Both of them are pretty hot

-Both of them are dressed like complete sluts in tight dresses and stripper heels

-One of them opens her mouth and says "Hey, boys!" in Hisoka's voice

-"Amazing what Transmuters can do, eh?" Hisoka snickers

-Nobody can tell who is Hisoka and who is the cis woman, all night long

-Of course he doesn't want to dress up

-He--grudgingly and with exaggerated patience--finally agrees to don a pair of red devil horns, but that's all the effort he makes

-As soon as he has a drink he takes the horns off and puts them in the trash can when nobody is looking

-Feels rather competitive about this entire costume thing

-Resolves to find something really good to wear

-He figures out a pirate costume and looks so good he basically out-Johnny-Depps Johnny Depp

-Everyone agrees he wins the contest

-Wait, who even said there was a contest?

-Oh well, there is one now

-Shows up wearing a long black coat, black boots, and a mask with a skull printed on it

-When anyone asks him what he's supposed to be, he replies, "An interrogator"

-"You and Illumi are the ultimate in buzz kills," observes Hisoka

-Finds a '70s disco outfit at a thrift shop that is full-on John Travolta

-He's really pleased with himself

-Forces everyone to listen to the Bee Gees and Abba the entire night

-Gets into a small scuffle with Feitan when Fei informs him he's not really as good of a dancer as he thinks he is