"Window of society" is "남대문이 열렸다" in Korean.
It is one of Seoul of the four major gates, is a term that is applied to the Namdaemun (남대문). Namdaemun officially called Sungryemun to, is the No. 1 Korean national treasure. But on the other hand is also means men pants zipper, so we call “Your Namdaemun is open” which means your zipper is open.