Junmyeon showed the other three, Jongdae, Chanyeol and Sehun, the note at work one day once they were all there and had gotten the opportunity to eat some lunch. He placed the post it note on the table so all three could see what it said. 

"Thirty first of October at eight. Dress up... That has to be a Halloween party," Jongdae said, picking up the note to look at it. "Did Yifan bring you this? His handwriting’s nice, almost as nice as yours."

"Well you don’t say, Sherlock," Chanyeol said, earning himself a smack on the shoulder. "It’s obviously a Halloween party. It’s on the thirty first after all and it said dress up," he continued, clearly not bothered by the music major smacking him. 

"So. What are you guys dressing up as?" Sehun asked after taking a sip of his glass of water. "Got any ideas?"

"Oh! Chanyeol, let’s do a couple costume," Jongdae excitedly said, his lips curling up into a big smile. "Like.. Cat and dog?" he suggested. "Or Batman and Catwoman or something." Chanyeol raised an eyebrow at the last one. "And who’s going to be Catwoman exactly?"

"You, of course."

"Where is this party anyway?" Sehun asked, changing the topic. "I think it’s on the other side of the city," Jongdae replied, pulling out his phone to check where this address was. Junmyeon had never heard of the place.

"It’s a hotel apparently," the student eventually said after a bit of typing and scrolling. "On the other side of the city. They have a huge venue you can rent. It’s probably there."

"A hotel?" Junmyeon said. Who held Halloween parties at a hotel? He’d never been to one at a hotel at least. They were mostly held at people’s houses, but on the other hand, he’d never been to one probably hosted by a billionaire. He still wasn’t sure who was hosting it. Was it Yifan? Or Luhan? Or someone else?

"Yeah. It’s huge. Expensive too. It’s like a five star hotel."

Definitely Yifan. He probably had some more contacts, or friends, who owned some five star hotels or something. 

The days rolled by like they were hours and it was Halloween before Junmyeon even knew it. This meant the season of drinks such as "Poisoned Apple Tea", "Black Magic" and "Bloody Caramel Latte" was almost over, to Jongdae’s disappointment who had loved the change of names for their menu, his favourite being his own creation; "The Blood of My Enemies" which was a strawberry coffee and not actual blood. As far as Junmyeon knew, Jongdae didn’t have any enemies, except maybe his English professor. 

The party was in six hours and Junmyeon still didn’t know what to dress up as. On one hand, he didn’t want to show up in something too childish, like Peter Pan or something, but on the other hand, he didn’t want to wear anything skin tight either, or barely anything at all. 

Jongdae had apparently gotten his wish granted, to a certain extent, which was him and Chanyeol dressing up in couple costumes. It wasn’t Batman and Catwoman though, to Chanyeol’s relief as he would rather not show up in cat ears and a leather suit. 

Jongdae, who fitted right into his costume like it was meant to be, and Junmyeon hadn’t even seen him in it, was going to be Cheshire Cat from Alice in Wonderland while his boyfriend of a year or so was going to be the Mad Hatter, also from Alice in Wonderland. 

Sehun hadn’t found his costume before a few days later. He had sent a picture of himself in the mirror, telling the three others in the group chat he had decided on dressing up as Draco Malfoy, a character in the famous series Harry Potter. Junmyeon had to admit he had the face for it. He did look a little mean - which he wasn’t, not at all actually - just like the character. 

Junmyeon had had no clue what to dress up as. He could just find some normal, regular costume like a vampire, a clown, a doctor or something else like that, but he wanted to be a little more creative and put some effort into it. Who knew what Yifan and the rest of his friends were going to be? He couldn’t show up in a red nose and a funny suit with a flower on it. 

"How about an angel?" Chanyeol had suggested. An angel didn’t sound that hard. He just needed some white clothes and a halo. On the other hand, it was a little boring. It was Halloween. The costumes were supposed to be scary, right? 

"Harry Potter," Sehun had said. "That’d be cool."

"I think you should go as a police officer. You could arrest Yi-. Ow!" Jongdae had rubbed the spot where Junmyeon had smacked him with the cloth he’d been using to clean the table. "It was just a suggestion."

In the end, he didn’t dress up as an angel, Harry Potter or a police officer like his employees had suggested. He decided on something easy to achieve, but not something too boring.

A devil. 

It was scary, well not really when it was Junmyeon who was in the costume, and all he had to buy was a red tie and some horns while Jongdae provided him with the makeup. He drew the line at eyeliner, though. Eyeliner just made his eyes water.

An hour and a half later and he was standing in Jongdae’s apartment, dressed up in some black jeans, a white button up, a red tie and a black suit vest. When he looked in the mirror, he looked a little dead, which Jongdae assured him he was supposed to. Whether he was supposed to or not, Junmyeon didn’t know.

Jongdae eyed him up and down as he was ready, a big grin painted on his face along with some whiskers. Jongdae did fit right into character. He couldn’t have picked a better costume. 

Once they were sure they were ready, and that they had gotten the address right, off they went.