Wow.. This drama is the only one I've watched so far where at the end I was speechless and empty. Heavy trigger warning for bullying, sa, death, etc that comes with crime kdramas.

The acting in this show was absolutely incredible. The way that the two ML's played their characters was insane from facial expressions to just their eyes or voice. They did an incredible job playing these two characters and portraying this tragic story. I personally loved Kim Dong Wook. He played a really good killer and by the end had me feeling so many emotions for Hwang Kyung Min. Also a huge shout out to the younger actors who played the past versions of the leads, they did incredible. Especially the acting of Cheolie.

I think the one thing that I personally didn't like was that I could guess where things were going (especially the big twist) before they happened. I wish that it could've been a bit more of a mystery, but the writing and overall plot starts to become very obvious around the middle part of the drama. It was still good to watch how everything truly played out and get every side of it, but it was too predictable for me. I also felt as though we didn't get full answers with Jung Jong Suk.. his background was so crazy and he seemed the most unhinged, but we never get anything more than just that..

The ending and the entire show just make you feel empty and helpless... a tragic story that portrays high school bullying, life and trying to just get through it.