Japanese anime feature following two apprentice knights on a quest that could prove the difference between the fall of their realm and its salvation. For years the people of Terca Lumireis have survived and prospered through the harvesting of a substance known as Aer. With the forests of the planet populated by savage creatures, Aer is particularly important for powering the weapons they use to repel the beasts. When Aer undergoes a strange transformation and supplies begin to dwindle an increasing threat is posed by the forest monsters. A team of knights including Flynn (voice of Mamoru Miyano) and Yuri (Kosuke Toriumi) is duly dispatched on a quest to an ancient ruin in search of a solution. How will they fare?