" Sign " the japanese version at least, was just not good.

The drama's story was interesting in theory, but it got boring really quickly. The story was not intriguing and that is probably due to the production and presentation of it. There were plenty of boring moments and the characters that supposed to have been the star of the drama were either not well presented as to make them intriguing enough to dominate the story, or they were not interesting enough.

Oddly, the "bad guy" of the drama was the most interesting one of all, with good performance and mental thrilling personality.

So, overall, four out of ten.