Best Sci-Fi kdrama Ever

I love sisyphus the myth. This drama is the best sci-fi kdrama ever with logical script.

Whole of drama is so so good.

Script is so awesome. The plot in this drama is beyond my expectations. Writers are intelligent and i became a fan of them.

Acting is soooo good especially cho seung woo. He nailed it.

I love music in sisyphus.

And it has best ending among sci-fi and fantasy kdramas.

--- SPOIL ---
YES DRAMA'S ENDING IS SAD ENDING. Not open ending or happy ending just sad ending and i cry and cry and cry.