Once upon a time, there was a god named Prometheus. He loved human beings so much that he stole the fire from the gods for them without letting other gods knew. Zeus was really irritated.
To take revenge on Prometheus and the human race, Zeus created Pandora, the very first woman ever to have absolutely ideal features. He then gave her a mysterious box and sent her down to earth. Out of curiosity, Pandora opened the box, not knowing that she has released all kinds of sins trapped in it.
Since then, human had lived in chaos. Pandora attempted to put sins back to where they are supposed to be but all in vain. She peered over the box in despair and saw one last thing left in the box - hope. Ever since then, the box had been hidden and nowhere to be seen until that day…