This is one of those dramas that deserve my full attention. It is entertaining and engaging. Most of the materials are value added, so I feel good about the time invested in this drama. The acting is very good. The chemistry between the actors is good. I checked out the other dramas that are related to this one, and I was super disappointed. The other series have poor special effect, costumes, etc. The setting for Ultimate Note is beautiful. I dropped all of them. If they make another drama related to this series, please keep the formulas.