Well, I know why people would gate the drama I guess. They didn't make much use of the second actor, although I have seen him in other dramas and he seemed fine. But since this drama is quite old, the made use of the main actor, Gong Yo as much as they could. I wish they had done better and used the plot more. The story ended incompletely, many questions unanswered, and many scenerios unexplored. I really would have loved to see the other actor at the end at least...I just don't understand why they would use Gong Yo sir again..
But anyway, the story really grabbed me, the writers didn't use the main concept as much as they could from the other brother's perspective, wish they had. Otherwise, the cast was really nice especially the main girl's family. They did great jobs. Great job by Gong Yo sir. Wish them the best.