Origin: Spirits of the Past

AD 3567. The human beings have lost their once civilization, and they are living on the desolated grounds. Although their lives are frightened by Gardener, a mysterious unmanned mobile weapon sent from the moon, strong boys and girls become Gardener hunters to earn daily bread. Furthermore, although the civilization was ruined, because of the high-tech maintenance free technologies, limited functions of cities are still working to support people's lives. Then, a boy's visit to a city opens the door of their destinies...

The story of Hotarubi no Mori e centers around Hotaru, a little girl who gets lost in an enchanted forest where apparitions reside. A young boy, Gin, appears before Hotaru, but she cannot touch him for fear of making him disappear.

Ai is a self-reliant girl that moves to Animal Village. She makes friends with the various villagers as she settles into the village. One night as she walked along the beach, she finds a message in the bottle. It sets her off on a quest of planting pine trees around the village to fulfill a miracle on the eve of the Winter Festival.

Long before the roots of history, there was a magnificent Continent in the Atlantic, torn by generations of wars, with people stricken by natural disasters and starvation. Wandering in this bleak world, Bois brings his sword, Tieh his magic, and Lakushi her heart to fight for one goal: to live another day.