Children Who Chase Lost Voices

When she hears a strange song from a crystal radio, Asuna tunes into more than just a magical stream of music. Soon, she is transported to a mysterious world where mythical beasts roam and brave warriors fight for their lives. Agartha is a land of breathtaking beauty and unimaginable danger – a place where, it is believed, even the dead can be brought back to life. But at what cost?

(Source: AnimeLab)

Alternative Titles: Hoshi wo Ou Kodomo, Children who Chase Lost Voices from Deep Below, Journey to Agartha, 星を追う子ども