You know~ the hot and erotic "thing".

Nam-geun is having sex with the youngest female employee at work every lunch time and Kim is learning sex from a married superior. Lee is going around, poking everyone here and there. All of them get horny once work starts.

One day, Hee-soo, the sexiest worker, comes back from China and she"s become even sexier. The male workers start to beg her for sex...