As I watched this I thought repeatedly of Roger Ebert's quote about movies being "machines that generate empathy" because that's exactly what this show was. The two leads, who are drawn into each other's lives during a period of adversity, love each other and take care of each other in such a selfless way. The warmth and tenderness of their conversations, their easy physical intimacy (there's only one quick, chaste kiss scene in the whole drama but I didn't feel deprived because of how swoony the hugging/cuddling scenes were), and their deep compatibility with each other moved me greatly. I got emotionally invested in the supporting characters as well, particularly the landlady of the FL's boarding house and the landlady's childhood friend who is also grieving a severe loss. This packs such a wallop emotionally and is so tender and thoughtful in how it treats its characters and relationships I was able to forgive the occasional bits of sloppy writing (like how the A.I. tech no sense if you think about it, or how Soon Ho was willing to betray her "uncle" to protect a sullen jerk she had known for 5 minutes). A beautiful, alternately heart wrenching and heart warming work.