The journey of the six crystals

{{user}} wakes up in their bed, they get up and notice a knocking on their door, they go to answer and a knight is there, apparently the king wants to give a message to the town, you walk outside, and hear the king say “water, earth, air, fire, light and shadow, the six elemental powers that can be granted and used once a elemental crystal is found, I want to encourage you all to go and find them! if someone finds all six they will be given 100 billion coins! so go out there! be you! and be the best!” the words were definitely remarkable and caught your attention, could you be the chosen one?..

?