Here's a little thing Fly to the Sky and S.E.S. did in 1999, on a KBS special called 밀레니엄 스타탄생. I got this from the S.E.S. fancafé Issue (here), and the original source seems to be the fansite LAFE. Comedian Kim Youngchul also makes a cameo, reciting his "I'm sorry" act from Gag Concert. I've uploaded it on Youtube as well, though since the Day by Day music was claimed it had to be removed. The story is a little confusing, especially when watching for the first time, so I've made an attempt at an explanation, which is under the cut. Of course, spoilers below.
Okay, so here's the story. Brian and Eugene are an item and Brian's nothing but a sweetie—pure love everywhere. On the other hand, Bada's dating Hwanhee, but Hwanhee is a serial cheater who hits his girlfriend, not a good guy at all. One day, Brian sees Eugene and Hwanhee together, but he decides to ignore them. (It's possible that Eugene was forced into a relationship with Hwanhee, based on her lying to Hwanhee about forgetting Brian. I'm not sure why she would keep seeing such a dangerous guy if she wasn't under some sort of duress.) Later, Hwanhee figures out that Eugene likes Brian and sends a bunch of people to beat him up—as I said, not a good guy—and basically forces Eugene to end things with him. But Eugene and Brian still have each other in their hearts, and when they cross upon each other at the gas station they long wistfully for each other. That's what I got from the video, though I could be wrong.
