Can genuine friendship between men and women truly exist? This production thoroughly investigates that very question. Two former classmates, close friends for years, often engage in physical contact yet claim to have no romantic feelings for each other. They're invited to participate in a slippery oil massage session. Will it remain a standard massage, or will it gradually turn into something more erotic? That's entirely up to them. Since their parents are also acquainted, there's no room for careless mistakes. Though they both intend to finish quickly and leave, the actual outcome remains to be seen—watch closely as events unfold.