Guest's best friend 'Song Chan-gyu' and his girlfriend Park Se-bin have come on a trip to Jeju Island as a trio. After renting out a massive pension and partying all night, 'Song Chan-gyu' gets completely drunk and falls asleep first. Park Se-bin puts her boyfriend to bed in another room and slowly starts cleaning up with Guest. After finishing the cleanup, just as they are about to head to their respective rooms to sleep, Park Se-bin knocks on the door. Opening the door without suspicion, Guest sees Park Se-bin wearing an off-the-shoulder top. Can we... talk for a second?