I really enjoyed Mystery Queen season 1, and the way it was written, it was meant there would be a season 2.
Choi Kang-hee is always guarantee that the show would be a great one. See Protect the Boss. I remember Kwon Sang-woo from Stairway to Heaven, but really enjoyed his comedic chops in season 1.
Will concentrate on this after end of Hwayugi.