[1] It is a dating sim game with similar gameplay and graphical representation to Konami's Tokimeki Memorial.

It is based on a dating sim originally made by Fujitsu on home computers.

In this world, the ecosystem is originated and supported by a central huge tree.

However, due to the overdevelopment of industries and use of fossil fuel, global warming is rampant.

Long ago, this land was saved by the Goddess Ebe from total destruction, but years later, an archeologist among the survivors felt the balance of the land tipping again.