..exactly. Hyo Sim character is "frozen" by Uee's wooden acting. The star who has stolen the show,till now , is Tae-Hee ( good job Bi-Joo!!! ) and thanks to her ,Do-Hyun has a chance to show his best!. Ha-Joon tries to develope TH's character but it depends on the partner in the scene. The best co-oworking is - TH-TM ( in the interview Joo Won underlines). JW shows a lot of TM's faces/relations and it works! And of course, Whee Hyong (Sook-Hyong) is a queen of the flexible mimic! Ga-Yeon (Ruby) can't find herself in this character. ..and Ju Eun, once again acting a " witchy lady" ( you remember "Uncontrollably Fond"). Just my modest thoughts...
Live Your Own Life KBS WORLD TV 231112 - < - there is a profile on YT and a forum. I hope there are someone who can answer you questions. Good Luck!