A romantic investigative drama about rookie detective Yoo-Ryung who solves cases with her overflowing sense of justice and exceptional spatial perception but always gets herself into trouble because of her rash actions. She meets the Wangsimni station constabulary chief, a man who avoids cases and seeks stability who always ends up cleaning up after the problems caused by Yoo Ryung and holds the key to solving the cases.
| Title | Time | |
|---|---|---|
| 1 | Job Interview & Audition | 2019-10-21 |
| 2 | Going Home to Family | 2019-10-22 |
| 3 | Disciplinary Hearing | 2019-10-28 |
| 4 | Tracking Down the Grasshoppers | 2019-10-29 |
| 5 | Club Day | 2019-11-04 |
| 6 | A Petty Thief? | 2019-11-05 |
| 7 | Jealousy & Confusion | 2019-11-11 |
| 8 | Facing the Harsh Truth | 2019-11-12 |
| 9 | Getting Closer to the Subway Ghost | 2019-11-18 |
| 10 | The Hideout | 2019-11-19 |
| 11 | Going After the Grasshoppers | 2019-11-25 |
| 12 | The One that Got Away | 2019-11-26 |
| 13 | The Grasshoppers Are Behind Bars | 2019-12-02 |
| 14 | The Subway Ghost Reveals Himself | 2019-12-03 |
| 15 | The Subway Ghost’s Method | 2019-12-09 |
| 16 | Finally Catching the Subway Ghost | 2019-12-10 |
