Usually...Its extremely hard for horror,mystery genre to cross that "6.5" rating and manage to keep me on my toes without mediocre storyline or scares ....this one not only reached 6.5 but managed a 10 from me ....its well written and done ...has some lovable characters , some despising and some " villains " that you can genuinely sympathize with. I dont really care what otheres say but this show really sets the STANDARD for this genre of shows, rewatch value ofcourse is kinda low for me since the "mystery" part is gone but Its a genuinely solid show 10/10.
I am 100 percent sure there can never really be another " achiara" for me no show can really replace how well this show managed to do its job
A movie that must go into the "Timeless Classics list" such a good film that feels like it was written by someone that understands how to realistically potray human emotions.... props to such good actors that did a terrific job . Came here for Kim rae won but seems like all the actors did their role on par
K-Drama 
I am 100 percent sure there can never really be another " achiara" for me no show can really replace how well this show managed to do its job