If you're looking for a well written drama about mental illness, I wouldn't recommend this drama. However if you're an optimist that believes that love will solve the answer to everything and doesn't get offended by having someone else's mental health glorified and romanticized, you're in for a real treat. KMHM in short is just another generic love story carried by shock factor. + Ji Sung: If there was one positive thing that I got out this experience, it was having the pleasure of experiencing the versatility of Ji Sung's acting ability. He was the needle in the haystack in a pile of mediocre talent. In my opinion, he was the only cast member that stood out and wasn't completely forgettable. However a badly written character is still a badly written character no matter how good the acting. The personality factor was messy and used as a background for a generic love-line therefore mostly just used a convenient plot filler. Like I said, you're looking for a well written drama about mental illness (+ child abuse) this isn't what you should be watching. - Hwang Jung Eum: Hwang Jung Eum can act. Hwang Jung Eum just can't pick her roles well. Because if you're someone like me, you've probably seen her in Secret (2013) and the difference just may shock you. I was incredibly let down seeing her talent being wasted in this drama. You've got this great and talented actress and the best possible role that they can give her is one that makes it seem like she can't act at all;you've got a loud, exaggerated, cringe worthy woman who goes around speaking and acting like she's a child despite being fully grown. If you're not a fan of screaming and high pitched/fake voices, don't read any further because you're going to have suffer through that for an entire twenty episodes. Oh Ri Jin had a lot of potential to be an amazing and inspiring character for women but ended up getting lost in transition from bad writing. - Park Seo Joon: I've never been a big fan of the 'faux' incest plot-line. I don't see why you'd want to ruin a perfectly good 'sibling' relationship but throwing in a romantic aspect of it and because of that I found Oh Ri On to be rather obnoxious. I found him manipulate as well and the show never even tries to address it. Nope. Instead he's portrayed as a sweet and caring brother and not the obsessive and manipulative creep that he actually is. - Han Chae Yeon & Cha Ki Joon: In short, they were completely useless to the plot and the drama was a waste to both their talents. Their characters were written halfheartedly and kind of just ditched in the end, making you wonder what their purposes were in the first place. Oh, wait. If your crappy plot-line can't make it to twenty episodes, drag it on with unnecessary side characters because the main leads weren't annoying/badly handed enough! Overall. if you're looking comedic relief and don't actually care about medical accuracy and the actual well-being of the main leads...watch it! You'll love it. But don't expect anything new or exciting. Don't get well thought out writing or consistent acting. Don't expect any realist portrayal about mental illness or abuse. This isn't that kind of drama.