I enjoyed the second ep more than the first. The second case was more intriguing than the first for me. Hopefully, they'll maintain the quality with subsequent eps!
The first 2 eps was rather boring, but it got better after ep3 when we start getting the background of the characters and finally understand their motive, so the show actually starts to get funnier. I especially enjoy Hikari's character; she's really strict, but also a very nice person.
It's been a while since I got hooked on a drama. I wasn't expecting much at first, ep1 was way too violent and there's so many lewd scenes but it just gets better and better as the story developed. It has a nice mix of funny and seriousness, and not to mention the acting is great too. Paisen is so funny!