In novel the back story is like 2 chapters before final, the whole point is that jiwook doesn't know what his crime was so one he know or get told what he did he will deny it saying that he is innocent and basically juyeon going to have mental break down saying that jiwook is insane, their no point in continuing torturing jiwook once he know what he did he actually planned to abandon him after breaking him but jiwook will get clingy to juyeon

Author needs to get to the point with the back story already. We(yes u and i) have been waiting for so long