User blog comment:Mizukithequeen/My Opinion about Koharu/@comment-27289874-20160923165347

Even if she hasn't performed yet, I consider her a main character because she appeared in every ep so far and had her own episode, she also has her official profile. Shion took a lot of time to perform and she is considered a main by the producers as she is counted in the last live of the original Aikatsu, so I'm sure that Koharu will perform in future. About her design, I love her as our first Sexy-type Idol with short hair and glasses (who also wears them always, unlike Kii and Yurika). What I think is the most reasonable explanation for her to not perform, is that they have problems with her model (maybe her glasses have some glitchs? Aftet all, she would be the first one to be modeled with them)