Memoria is created since the humans are created. it rests in the middle of those 2 powers and the demon lands . therefore, dark shadows/light angels could be seen running towards the demon lands for war. the townspeople have long summited their fate to the 2 powers.(as fate is connected to destiny, so is my name (just a joke =D)). many heroes are born in times of need. this town have seen many of their great heroes pass to either the light or the dark. the green crystal(might change color or even discard it) holds the memories of the world. therefore, it holds great powers. the power is so strong, breaking the crystal alone can destroy the town. when all the memories flood the world, the whole world , even the demons, will be thrown into great despair. its like a great timebomb, more memories are stored into it everyday.