I watched a lot of drama, I tend to dislike overacting drama maybe that's why my rating was so low. Anyway, here's the good and bad.

The good:
+ Great build up of the story, you won't feel bored watching and keep wanting to watch more.
+ Great premise
+ Music was good. Help to build the suspense
+ Great lineup of actors and actresses


The bad
- Overacting. TOO MUCH. Esp Suda Masaki and Ryota.
- Everyone character just too... stupid??? Esp those cops and most of the students?
- Cliche, The main character teaches their student to think before they behave; BUT he also accuses someone without proof. Hypocrite?
- Predictable ending
- SUPER cheesy. Let's think? LOL
- Repeated scene and storyline towards the end.

Overall, a good addition to winter drama, but definitely with some flaws