This drama is like riding roller coaster. I stat to watch not because I really want. But after few eps, I fell into it. I have seen many dramas related to memory. This is kinda different from others and such a beautiful romance/crime drama. I am really satisfied with ending as well. Regarding acting of MGY, she showed a bit mature side of her as we all know she is good in acting but she still need to improve more in emotion. The chemistry between actor is good, even though, their age is so much difference. Overall it is a good drama. Worth to watch it, don't get me wrong.