One of the albums containing the music for Ciel nosurge: Ushinawareta Hoshi e Sasagu Uta, and the first disc in the Genometric Concert series, this CD contains expanded rearrangementes of all the songs that serve as the capstone to each of the four chapters that comprise the first arc of the game: the Trials Arc. It also contains the opening theme to the game, To the Songless Hill.