I'm going to keep this short and sweet. I wrote an in-depth review on GOODBYE MY PRINCESS previously, so here I just want to point out the differences in this "Director's Cut" edition and the originally aired edition of the drama. The main thing you are probably wondering is if there are "3 extra episodes" and the answer is NO NOT REALLY. Sorry to disappoint.
The reason there are "3 episodes" MORE in the Director's Cut and the original drama is that the first two episodes and the final 2-3 episodes have more scenes added in. Most especially in EP #1 & EP #2? Meaning, so many "cut scenes" were added back in, that is added up to approx 120-130 minutes of cut footage which extended the show by 3 episodes.
The MAJORITY of the show has absolutely zero changes. If there were any "extras" in the middle episodes they were so subtle, I didn't notice them. I wish we had more scenes with our leads extended in the middle of the show and after the Oblivion Falls shenanigans, but no such luck.
All that to say, I really did like the additions that were added in the beginning and in the end. They would have been MUCH appreciated if they had originally aired.