I'll keep it short because I didn't like this drama. Then again, I'm not really fond of the daily dramas.
The only thing different about OMR were the character names and occupations. Other than that, there was nothing in OMR that I haven't already seen in another drama. OMR had a good cast but they deserved a better script. Hye-sung & Yu-kyung were the best thing about this drama. Perhaps, the drama would've been better if it was based around them. IMO, a subtitled version of the MBC daily drama 'Pretty Woman' would've been a better choice for the 6pm timeslot.