Plot hole: In the common route, Mariya explains that in her former idol group, Quasar, "Your dance position has nothing to do with skill. It's based on a popularity poll." However multiple times in different routes and parts of the story they cross paths with Kaori ignoring who she is. She is number 5 of Quasar, the overwhelmingly most popular group in Japan. It's absurd they wouldn't know one of the most popular performers of their industry, and direct rival.
