It’s similar to class of lies because both of the drama’s are trying to find out what happened and people get kill in it.
They try their best to solve the mystery despite the fear of the truth.
I recommended class of lies because it’s interesting even though you think you know who the killer is you still will have second thoughts like ‘oh wait... is it this guy?’ Something like that.
I cried because of a scene it was sad I felt bad for her and wanted to save her myself but of course I can’t xD. I highly recommend it if you like kdrama’s that are mainly around students and mystery’s. Honestly I thought the main male lead was cool.