So actually other reviews were kinda cruel to me so I decided to write what I think of this series.
First, i have to say the first 2 episodes are aweful. I even dropped it myself at the beginning and I have seen lots of people who dropped watching it at the beginning but I can say deciding to keep watching this series was the best decision I could make.

Here's why I love this series and why I recommend it:

1. This series got better episode by episode. In episode 3, we realize why they are doing such a thing and in episode 4, the main story starts and then episode by episode everything got more complicated and I can say the last few episodes were so shocking and exciting and I wish I could watch them again without knowing how things would go.

2. Unique comedy. first this kind of comedy might sound annoying but If you keep watching, you feel like you need such a thing in the series and I myself laughed so hard with it.

3. Couples. the first couple sounds like Tom and Jerry at the first episodes? but I really loved the way their relationship was improved and about the 2nd couple. God they are so cute?.

4. predictable but shocking at the same time. Honestly I could guess who the killer was but when I saw it with my eyes, I was shocked and I really loved this point.

5. Chaotic squad. Nam Han Joon, Nam Hye Joon, Sochool and Nadan were so funny, chaotic and useful at the same time.

6. effective sad scenes. I didn't think that I would break my heart but Seo In Guk did a great job playing those scenes and the sadness in his voice everytime he talks about his best friend.. Oh It was really impressive.

Generally I recommend this series and I want you to give it a little time and It will surely show itself to you.