Vocaloids mentioned? Virtual idols involved? Real idols involved? Interesting case! There are a bunch of scenes that are somewhat nicely detailed along with the current settings in this episode. The case started when a celebrity that was found dead somewhere. But due to some of strange twists and turns, the ending ended in a unpredictable way compare to most detective shows. This episode is quite unique and a must watch. Other than that, the series proves Gosick is a little sister to it since it has fantasy twists and special abilities related.
Conclusion: Nice episode and ending was quite unpredictable.