The SJ members are in their dorm, they were chatting and discussing about the prom, who they will ask and what they were going to where

Sungmin: 

"Hyung, what are you going to wear tonight?" he ask Donghae "fish suit?" he tease.

Donghae: "No~" I'm going to wear the normal prom suit"

Donghae's Suit

Sungmin: 

"Wow look cool hyung!" he cheered

Donghae: 

"Thanks bro, so what are you ALL going to wear?"

SJ Suits

Sungmin

Eunhyuk

Lee Teuk

Kyuhyun

Ryeowook

Yesung

Siwon

Sungmin: 

"Wow we all look cool nae hyungs!" he cheer

SJ: 

"Nae!"