Kai and Hyoyeon have a forbidden relationship. If anyone is to find out, they would be in deep trouble.

The reason for this, is simple and cliché. 

He was born into a rich, priveliged family. And she... She was born into a peasant home. 

Two people from such distanced social levels, cannot be together.

But, they can, and they will. 

So, venture on, on into their twisted love.

But before you go on, may I ask a small favor: Can you keep their secret?