First of all, all the actors and actresses did an amazing job in their roles. Every character has their own likeable and dislikeable traits. I love the mix of thriller and rom-com in this drama; it fits the superhero concept. The plot is very well written, but I would love to see more of Ahn Minhyuk's side, like a more expanded plot for his character. They hinted at some of his interesting background in the drama (like how he thinks like a criminal), but it never really paid off. I never really expected the darker side of this drama to be intense, so it was very satisfying to watch. The comedy is almost perfect for me. I laughed all the time because of the slapstick and funny adlibs. The music is very well timed and appropriate. I really love that OST when the main character is in action. The best thing about this drama is the chemistry of the leading couple. They're so adorable and so lovely together, to the extent that I would love to see them getting married in real life. I became a fan of Park Boyoung because of this drama. Overall, fantastic drama; definitely a must-watch.