I'll rate this a 4.5/10.

Found Pyo Han Eum (Yoo Sun Ho) and Seol Oh Sung (Ahn Hyung Sub) adorable, but the acting was so unrealistic. A lot of scenes makes me wince and cringe, the problems that they tackle/show in this drama was okay it's just the delivery of the actresses and actors that is not very well. Though the chemistry of the 3 detectives was good.

But since this is a mini drama, I won't heavily criticize it. I watched this for Kim Namjoo (Ok Jin Kyung), but unfortunately I didn't liked it. If you are finding a kdrama that is light and short and can be finished within the day, then you can try this. Although personally, I would recommend you to pass this drama and just find another mini drama to watch.