This drama is amazing! Another kick-ass character from OCN series. Of all, Hero is the cutest and most idiotic and imature chracter. Which actually make you love him from the first episode to the end. His change from rich playboy to the real HERO is hard and full of blood, yet... this journey is fun and action packed. Storyline is very interesting and full of excitment through the whole series (well, it has only 9 episodes which makes it easier). The story is dark and full o special effects and action. It just feels like one long Batman movie! :D As for acting... i gave it 8, because of Yang Dong Geuns acting. He is great actor and he gave this character a special charm, that wll make you fall for him. But in some psychological aspects, i felt like he overacted some scenes. But I felt that just in one scene, so its not such a bad thing. So... this drama is great. With every episode, you will want to see more and more... i hope, that there will be second season, because it would be great.