Doty said, "Clearly, BTS is very thoughtful in the creation of the music and the lyrics such that their songs deeply resonate with many people, not only in Korea but around the world.
"The reaction to my book has always been very strong and positive in that it has a message about opening one’s heart and overcoming adversity – struggles which everyone experiences."
Doty added, "That being said, the immense popularity of BTS and the song has not only resulted in my book becoming a best-seller in Korea, but has resulted in a dramatic increase in exposure of the book to many others around the world – boosting sales and promoting the message of the power of having an open heart and of love, which I appreciate and which is needed more than ever."