Why on earth there is the word 'why'. Why everything needs to be complicated. Aren't simplicity is the great happiness? Why things need to go across the boundary. Why do people like to ask why, and why there is no perfect answer for every question? So, why do we ask? Cause there is always an answer expected by us. And the candidate always fail to score a good grade in those exam. That's why the world is complicated, human's heart are not as simple as what we studied in science. As well as human's brain. No perfect guy in the world, same to girl.

Everything is tangled.