The data realm is a multiverse that holds a copy of everything in the real world. Inside it, the data drawn from relics of human culture has become self-aware, and a hidden band of these spirits has formed an alliance known as the Country of Rare Treasure. A group of restorers, who are looking into where they themselves came from, guide the secret spirits in a fight against forgotten viruses that threaten to devour everything. The ten-episode ONA blends adventure, fantasy and mystery.