I liked it a lot more than I thought. It starts slow, FL is a noisy and stubborn person who can't maintain any job because she can tolerate injustice and she's famous for put like a million civilian complaints.
ML is a cold, stubborn, and inflexible dude who also has a great justice sense.
Once you know them and they start interacting the series starts to get better by the minute. Their chemistry was fantastic and even when the story it's a bit simple and you can expect most of the stuff that happens just the main couple make the series worth watching.

PD: Nana's laugh it's one of the fulfilling sounds that you can ear.
PD2: Small spoiler. When Nana waits for you to celebrate anything with her in your place and you ignore her as SML does in the first chapter you deserve nothing but pain.