There is a country blessed with the plentiful vegetation and clear water in the western part of the Aeinxia continent. The prosperity of the country owes a lot to so-called "Spirit of Water", that equals to gods in power. People are blessed through special women called "Maidens of Water", who harness, with their peculiar ability, the spirit's power.
Today, in the Temple of Water, a maiden trainee "Clementine" is set to attain the ability of Maidens of Water in a ritual. Wearing a solemn costume, she walks to the depth of the temple in order to make a contract with the Spirit of Water.
On the other hand, a mysterious one who bears evil power draws near to the Temple of Water...