Koki Harasawa

A group of enigmatic white-haired children has been spotted at different times and places in Europe for over 500 years. Always with the appearance of 11-year-olds, they behave far more mature than they should be, never grow old, and seem to have supernatural power. What they have been seeking is a girl, and the only clue they have is a picture with a crescent moon. Now, in the year of 2012, an athletic boy named Tohma is about to be involved in this centuries-long mystery. (myanimelist.net)

Mika wants her band to perform at the upcoming festival. However, her keyboard player quits and the mayor threatens to take their stage away. Will she be able to fix things before the festival starts?