Basing just off the movie since I haven't seen the drama or read the manga. I really liked this movie. It was cute and funny. It's nice seeing Jang Geun Seok play a role that's less serious, like his characters in Love Rain & The Case of Itaewon Homicide. In Ho is a dancer who is looking for a place to stay and his friend talks Eun Yi the fashion editor, into letting him stay the night. In Ho finds out she has been wanting a pet dog and says he could be her pet, as a way for him to keep a place to stay. Eun Yi thinks its the perfect way to get him to want to leave and gives him his pet name Momo. They get closer, but Eun Yi's ex wants to get back together and her co-workers think Momo is really a dog. What will happen? Watch.