I believe the title would be more appropriate as Class Reunion, hence I've titled the torrent to reflect that. I hope this doesn't cause any confusion to anyone.
Synopsis: The MC, a happily married salaryman named MJ Kim receives a phone call from a high school friend (from 14 years ago) asking him to attend the class reunion. When he arrives there are only 3 women and 2 men who seem very well acquainted with each other. After some small talks and some drinking competition, one of the men pulls out a set of Pair-Up Raffle boxes. The boxes would have slips of paper with numbers 1, 2, and 3 written on them, the guys would pick a slip of paper from one box while the girls do the same from the other box and the matching numbers would pair up (a typical way for teachers to make the reluctant students to pair up for events, as quick as possible). As the bewildered MC looks around, the other paired up couples are starting to act intimate and heading towards the bedrooms. The buxom woman whom the MC has paired up with, starts making amourous moves on him. When he shows reluctance to her advances, she tells him the pair-up numbers always change...