Na Jung Sun: Have you ever experienced the feeling of
someone you thought you knew well
suddenly becoming a complete stranger?
[...]
Song Mi Na: Isn't it a mistake to even think
that we know another person well?
We think that a part of the person we see
is that someone's true self.
Don't we all have at least one secret
we keep from others.
Na Jung Sun: Is that so?
Song Mi Na: Isn't that the case with you?