I watched this after finishing the drama and I'm glad I did after Lee Rang's death this was perfect and helped healing my heart a bit. I'm still very sad with ending because I loved Lee Rang's character and Kim Bum did a phenomenal job pertaining him. This is compiled my 3 episodes my favorite was the one with Yu Ri. It was great to see how he found her and helped her live as human. I loved their relationship in the drama and I was so happy to receive this extra content. Everyone should watch it.