I expected a complex storyline, and a happy ending, but I only got the later. The writing was rather lazy, and it tried to create a façade that it is a complex and twisted storyline, but it really isn't. I felt very few heightened trilling moments, or suspenseful and climactic points in the drama. The story aside, the rest was quite enjoyable. Kim Go Eun is rapidly becoming my favorite actress and her screen presence is just phenomenal. There is something simplistic yet sophisticated about her, and and it just makes me appreciate her even more. The rest of the cast was good as well, specially the 'unbreakable sword' guy. The drama does end happily and I didn't regret watching it. It had its moments, but I will not watch it again. Give it a go if you like fantasy-sci-fi dramas and like happy endings.