This drama has one of the best opening hooks in a television show. It's a meet cute and a falling in love at first sight (literally) all in one, and it's accompanied by a sweet song that will have you rewinding that scene a few times because it's very cute. That hook is what reeled me into Happiness, but unfortunately I wanted to unravel myself from that noose after I got to the 10th episode. Overall the show is entertaining and it has a lot of positive things going for it, like the acting, OST, and some decent directing. It seems like this may have been filmed during the pandemic as there are several reference to Covid-19, which of course makes this drama very meta to our current times. Again, there s' a lot to like, but what doesn't work is the story and characters. I've never met a zombie story without plot holes the size of the Grand Canyon, so that's not my main complaint. My real issue is the theme of the drama is lost amongst the repeated antics of characters who surround the main couple, and because of that there are only three likable characters in the ENTIRE drama. The ML, the FL, and the Kid. You start actively rooting for everyone else to die around episode six if you have a heart, and far earlier if you're heartless like me. By episode 10 I started leaning on the FF button because I was ready to get to the end, and to my disgust far too many of the unlikable characters were still alive by that point. The sweet moments between the main leads and my desire to finish this in drama in its entirety kept me through to the end. It wasn't a bad ride once all was said and done. The acting was was top notch, which is why I hated so many of the side characters. They did a good job of making me hate them, and of course the ML and FL have really good chemistry, which was shown very well throughout all the times they worked together as a team, and during their one kissing scene...lol. Would I watch this again? Probably not, but I would watch the actors again in another drama.