You fall in love with the main characters. Right at the beginning we are introduced to a typical gyaru (Kitagawa) who uncharacteristically loves games/anime/manga and especially cosplay. The contrast between her childlike enthusiasm for each new cosplay and the selection of the cosplays themselves, which doesn't shy away from a lot of daring eroge stunts, is perfect. Gojou, who is a typical introvert who's had his share of rejection from his surroundings as a child, makes it clear what direction the entire manga is going to take. It's more or less that classic thing where you have an extroverted gyaru who has to turn an introvert/otaku/whatever into a functioning member of society. When you strip a story down to the bone like that, it's not really new, but it works perfectly here. However, they both have hobbies and dreams that those around them don't understand, but they have found an understanding between them and the story more or less starts to build on that.
There are arcs here that are solidly satisfying and the relationship between the main characters changes in various ways, they get to know each other, they talk and it's a joy to watch them interact with each other. Then there are arcs that focus more on the cosplay itself and the things around it though. It's a shame that by the middle of the manga (say 50-150), a really big part of the story focuses on cosplay and thus the whole development gets pushed to the back burner.
Of course, like any typical romcom, there's bound to be various missteps like "now I've seen her panties; how do I measure her waist/chest circumference", but this isn't a typical school anime, so thankfully they don't dwell on it too much and rather these "episodes" serve for some personal development. The side characters don't get in the way and aren't like the driving force behind the events, rather they help the development of the main characters. They serve more as a way to help the main characters realize certain things or sort out their thoughts, but without the side characters telling them what to do or pushing them into anything.
There's not much drama going on here, which is fine by me. I'm not saying there isn't, but so far it's always been handled with some grace.
For me personally, this is one of the best manga I've read or seen as an anime. The humor, character development, and story concept is great for me.
