I have no words for this drama! It was just Insanely well written, with an epic cast, tons of twists and a huge roller coaster of emotions. I myself got anxious around the last few episodes but this drama never failed to keep me hooked. The evil seemed very evil, the good seemed very good until we all got to see their hidden sides. This story also helps you to have a totally different prospective of humans in general. How most of them are the scariest even when they are 'normal' and how the ones who got the disease were far more innocent than them.

The greed, the urge to be on the top and the need to survive is all these normal humans need to forget all humanity and be worse than those who actually were turned. The drama will open your eyes towards a different world and will make you realize how everyone turns selfish in a matter of seconds. You will realize that the only ones rooting for you and worried for you is family. No matter just how much far you have gone, you suffer with family and you survive with family.

All the characters did their jobs effortlessly. They pulled you in so hard that there are times you want to get into the screen and slap the careless ones or throw the troublemakers out the window, sometimes you will want to get in there and protect someone, other times you would want to scream in someone else's face.
The actors have done a mind blowing job and proved that Noone could have done it better than them. Park Hyung-Sik shines throughout. His expressions, his words, his actions, his aggression, his adorable smile, his bravery and smartness, makes you fall head over heels for him or deeper for those who already adore and love the man.
Han Hyo-joo plays a very important part throughout as a female lead. As a person who loves strong and independent female characters, I respect her role tremendously. She kept the drama and our dear man safe and sane from the very start. Their chemistry was so on point that they will make you blush with even the slightest of proximity between them. It's a treat to watch the two of them together in this beautiful drama. Not to mention Joe Woo-jin who plays, Han Tae-seok. His charisma, the power he holds and his way of handling situations was just my cup of tea. Man had my attention all the way.
Also much much credits should be given to the supporting casts too. Every single character was relevant and unique in its own way. The director and crew did a superb job with the cast.

The sets were interesting and very well chosen. Every single one of it gave full justice to the ongoing scenes. Coming to the plot, don't take this drama as a repeated one or something you won't be surprised to watch. Trust me when I say this, but it will give you the greatest shocks in the most unpredictable times and leave you on the edge, all anxious but excited at the same time. It had enough plot twists to not let you get bored anytime. The 12 episode journey will leave you in a storm full of emotions and when it gets over you would have to take a deep breath to recollect yourselves. I am genuinely impressed by the story telling skills of the director and writer, Mr. Ann Gil-ho. He gave us a full package to have all to ourselves and just let go into his creation of Happiness.

And don't even get me started on the songs. This is something very common in all the kdramas, their choice of bg songs always being perfect. That one tune which is especially reserved for our dear couple and their soft scenes or the one which gives you a feeling of peace even though there is nothing to be at peace for are just so soothing for the ears.
Everything, the cast, the plot, the songs, the drama, the emotions, the settings and the dialogues was just supremely satisfying. You might feel the ending was a bit rushed, but trust me, it's the best as it is. Enough to calm your anxious heart down but at the same time leaving you longing for more.

All in all, Happiness is a must watch. I binge watched it in two days and it was more than worth the time. I am elated I gave it a shot after a few months of its release because I was surely not disappointed.
Do give it a chance to take you on a breathtaking journey full of deep sentiments and an ocean of emotions, cause Jung Yi Hyun and Yoon Sae Bom are coming to steal your hearts. Which by the way, they will surely succeed in doing.

Go find your true happiness. It lies somewhere close to you, waiting to be discovered.