What a beautiful drama. The characters are real with depth. They touch on a lot of heavy topics in this drama so please keep that in mind; this isn’t a light heartened drama to binge watch. 
Let’s start with the leads. The female lead is Nurse Set; she’s sweet, funny, charming and cares a lot for her patients. Maybe I’m biased because I’m a nursing student right now, but she was definitely one of my characters of this show. She doesn’t give up easily and especially not for the people she loves. Some people said she was “boring”, but I just wanted to say a general comment about this drama: this drama is among the more realistic Kdramas. The chatterers aren’t dramatized to a level where they feel foreign or feel like they couldn’t exist irl. Every character in this drama feels like they could be a real person that you know or could know. The male lead is one of my favourite male leads in a drama in a LONG time. You can definitely see the way his past impacts him, but he is not a bad guy. He is actually an incredibly sweet guy with a soft spot. The romance between the two leads was definitely my favourite part. I like how it wasn’t the main focus and it felt completely real and honest. There was no “love at first sight” or any unnecessary tropes. It really felt like a naturally developed romance and every scene where the leads were together felt so intimate, as if I shouldn’t be watching.
Now let’s talk about the plot. I loved the plot! I had some critiques, but for the most part, I loved it. This drama has a main plot, but also has small sub-plots that aren’t boring and aren’t just randomly thrown in. I like how they talk about mental health such as dementia/Alzheimer’s or issues like revenge and dealign with grief. I think seeing things like these and the way the scenes are framed and portrayed really made the show that much more heart warming and heartfelt. Every character in team Genie was wonderful and I love every member of it!