I want to start off by saying that Plus Nine Boys might be the most underrated drama this year. I haven't seen a lot of attention around it, but everyone should give this one a shot. While the story itself isn't anything special, the execution of it is. Tasking the PD with finding a way to balance screen time between four separate love lines is no easy task, but the PD exceeded my expectations in this sense. However, since there are four separate relationships to juggle, the gist of each relationship's plot is standard. Despite that, the cast is where this drama truly succeeds. What stood out to me was each couple's chemistry. Each couple was cute in their own way and the entire cast seemed to click. Everyone looked like they were having genuine fun with their roles. I originally thought I would end up watching this drama only for my darling Chorong, but I was proven wrong within the first couple episodes. I found myself picking my biases and obsessing over certain character's appearances. Not only that, but the men in the drama have dynamic personalities and are also all good-looking lads. As for the music, I fell in love with Standing Egg because of this drama, and I found myself downloading dozens of their songs. As a matter of fact, I frequently paused episodes in order to Shazam a lot of songs or try to search for them. The soundtrack and BGM were pleasant to my ears, and I must say that I favor this drama's soundtrack second only to 'It's Okay, That's Love' and that soundtrack was a masterpiece (in terms of K-Drama OSTs). In terms of re-watch value, I normally give low scores for this part since I never think to re-watch dramas, but I'm thinking of adding this to an eventual re-watch list because I always looked forward to weekly releases, and I was a wreck waiting for them. Overall, what sells this drama is its amazing cast and chemistry. Each viewer will have their bias couple, but that doesn't mean the others are lacking in any way. With that being said, I must emphasize that if you love the cast, you'll definitely love this drama. However, if you aren't fully convinced by the cast and are expecting an innovative, extraordinary plot, you might be a tad disappointed. The momentum of this drama is carried depending on how one feels about the cast. In other words, if you love the cast, episodes will fly by but feel draggy if you don't. In the end, I recommend this drama for anyone needing something light and easy-going.