Watching this drama was... often frustrating. I liked Moon Kang Tae's character, but I think he really vanished in caring about his brother. I wish he would've had a personality outside of being a caretaker, or given the chance to develop colorfully as an independent individual. There was some development, but there could've been so much more with him. Couldn't stand the FL and her chemistry or rather the lack of with the ML, which was horrible. Her sociopathic personality was such a destructive match to the ML's gentle demeanor and she benefitted from the relationship much more than he did. How is something like this romanticized? I only watched till the end because I enjoyed Moon Sang Tae's development and the amusing, likable antics of director Oh Ji Wang.