Not luck. It is call being rational. I enjoy these dramas for they are light and entertaining. I don't have to put my emotions into a fictional character.
The letters were written only for 1 year, and grandma would help with those letters. Later, Dal Mi kept on writing…
Grandma was around him all that year. It's more than 1 month where she would write with him. She even felt guilty for putting her words in those letters. They were not JP's words alone. More than 3 scenes show that.
Nam Do San fans watch this so you can understand why he’s not a healthy character https://youtu.be/CZ6kOng63DQ
The letters were written only for 1 year, and grandma would help with those letters. Later, Dal Mi kept on writing them, with no response? Or was it grandma responding them? Where do people got lost?