There is one main story of one of the girls, and the rest have their own stories to follow as well, just not as much as the main character. The main girl is supposed to be your typical ditzy but loveable one. I usually think characters like that are stupid and annoying at times. My favorite was Enjoji, because she is quite different from the others, more confident and seemingly knows what she wants. Rio is a pretty cool character too, but Mizuho was hard to tolerate. Romance is a large plotline of the drama, and I wish there was more focus on the friendship between the four girls. I went into it expecting more about the friendship. But it's definitely a fun watch nevertheless.