The part where Da-yeong hated his father for not being a good father to him, but later on he realized he was becoming like him too. It hits hard. We never know that the things we don't like are the things we are doing to other people too. Too much family, life lessons in this drama.I was also heartbroken for the part where the U-yeong knows what his child are going thru, the things he doesn't know as their father. It was very painful. And for him and Da-jeong as couples, may we all not invalidate each other's feelings. We all have issues in our lives we can't tell the other person. Be mindful of each of our emotions.We rlly never know what's rlly happening unless we ask. Let's not easily come into conclusions w/o hearing the other person's pov. I had cried and laughed so much for this drama.