if I could describe this drama in two words they would be exactly these: wasted potential. With a cast like that, the writing was so bad it was almost a shame to watch.

The premises were good, I liked the concept of the show but the more I watched it, the more I realized it was just going to fall victim of bad and naive writing.

The first episodes were...okay. I honestly loved the series more when it focused on the patients' story and how they got at that point in their life to end up in a mental hospital. But I got the feeling they tended to heal too fast; all the doctors kept saying "just take your meds and you'll get out of here" uhm that's not how it works??? And in fact most of the patients we see get discharge, came back after a while because they were not healed and they were not ready to be in the outside world.
A perfect (and sad) example of this was the story of Kim Seo-wan. Nobody listened to him, let alone our super empathic female lead, and he eventually took his life.

After Kim Seo-wan died, the show went completely to shit. (Good, because he was my favorite, and he didn't deserve to die just to create a shock value to Jung Da-eun). I get that they were trying to show how depression can hit anyone, and it's true, but to me this storyline felt really forced and exagerated, it was really boring to watch and I just wanted to slap Da-eun, she was really immature and selfish.

The "main" couple (if we could call it like that since they have like three scenes together where they're being somewhat romantic to each other) was honestly unnecessary, he was so fixated on her to the point of being almost creepy at times, while she didn't seem into it at all LOL.
The second couple was... okay. They didn't make me feel anything in particular, it's the typical rich boy/poor girl trope with the bonus that he's completely bland as a character (as in, we don't know anything about his background or his family etc.) while she suddenly decides she doesn't want to be a nurse anymore because she wants to go sing and dance on a cruise??? That made me laugh so much, the writers really pulled that out of their asses LMAO

Also, this drama was all over the place in terms of genres! You go from cringe (supposedly hilarious) scene with hemorroids to a pinch of romance just to pass to a list of suicide attempts as if you were going through a grocery list.

I think that if it focused every episode on a patient and their disorders, explaining all the peculiarities of their illness and how to get better, it would've been such a good heartwarming (and hearbreaking) show! But alas, it ended up being over simplistic and boring. Too bad because it truly had a fantastic cast.