The text below might contain orthographical mistakes since I'm not a native english speaker.

I was anticipating for this drama even before it was released: a friend sent me the teasers and I got super excited since I was looking for a mystery drama to watch. The beginning was pretty confusing (I had to rewatch the first four episodes to fully understand), I thought the random informations we got were going to be addressed while the episodes were passing, but it never happened. The writers were just opening new problems in every episode and never clarifying the ones created previously, taking the focus away from the main subject and creating a whole mess. It's hard to connect every piece of information we got about the murder itself when the drama focused more on exploring the life of secondary characters, and there comes another problem: how come we know more about the supporting roles than about the main characters, Kang Sol A and Han Joonhwi? They never clarified what happened with Sol A's family or what Joonhwi's uncle said to Jiho when he was on drugs. It was just a mess from start to end. But what made me watch it until the end? 1. The OST; 2. The charismatic characters: Even if I see the deepening of the student's life as something unnecessary for the plot, it made it easier to like them. I loved how the study group's character's personalities were contrasting, but they still had interesting interactions, looks like something I would see on a 2010s Nickelodeon TV Show. The subtle hints of a possible romance between some of them were amazing too (Bokgi crushing on Yeseul was so cute!). I knew there wouldn't have space for romance, but at the start I waited for something like Suho/Jukyung/Soojin from Joonhwi and both Kang Sols, instead, they worked very well as a trio; 3. Yeseul: If it wasn't for her, I think I'd have dropped the show. Different from the others, her arc added something to the plot and I LOVE how the scriptwriters portrayed her feelings: The blind love she felt for her boyfriend, the fear she had of him, The Moment Of Realization, the confusion someone feels when dealing with an abusive partner. Overall, I don't think it is a good drama and would not recommend it. I'd never watch it completely if I wasn't keeping up with the weekly updates. Anyways, it's a pity that it doesn't give what it promises, but I don't fully regret watching it.