Star gems masters

many years ago there were other star gems masters besides Star. unlike from the pink and black one they having yellow stars on their foreheads. they all protect the World from evil and worked together with starlight rangers, but when some of their hearts became dark they become dark gems masters, but star gems masters have defeated them. until one day a powerful evil being known as storm of darkness came and plunge evryone into darkness. star gems masters and starlight rangers try to fight back but they losing many star gems master until it's only one left. the last star gems master used the star gems to seal it away the storm of darkness. the last star gems master have found a pink star and a black star, the pink one can make someone into star gems master while the black one can make someone into dark gems master. the last star gems master used them to choose the new ones, but there haven't arrived the ones until now. Star is the star gems masters and Emily is the dark gems master. the black star knew that Emily's heart will become dark in the future