Unexpectedly it was really intresting storyline. And acting has been outstanding. Its my first ever review for any drama.

All characters no matter how smal may have been the part in the series has been well written and potraid well.

It had its light moments. Sang yi was a surprise to watch.

Park sung woong has always been one of my favourite villians.

Action sequences were really well executed however at times its monotonous.

I would have preferred if they would not have killed few characters.
Overall a good watch if someone is looking for non romance action thriller.