This cross-dressing and hidden concept is not new and sometimes executed poorly.
I will like to commend on how it was portrayed by both the FL and ML respectively. It was extremely well paced in terms of how and when they discover each other gender/identity. Some dramas just drag this aspect which can cause audiences like myself to get a little frustrated.

The group dynamics of them 5 characters whom bring different skill sets to the table and distinctive personality types made the show memorable. Somewhat similar vibes to “Ancient Detective“.

To me, I find the cases pretty well thought of even though the focus of the show is more on the romance of the two leads.

Lastly, I gotta say the OST and the instrumentals in the show were amazing. Especially the ending credits duet which warmed my heart every time it played along with an ending credits scene.
*Please ensure to watch the ending credits of every episode as it includes heartwarming/removed scenes from the drama that create more depth in the overall series.*

If you are into female strong lead, relationships that are supportive, and not overly done humor, be sure to catch this drama. :)