Unknown to the people of Earth, there is a branch of humanity called the "Gosei Angels", whose mission is to protect the Earth. When the Earth is targeted by an evil alien invasion force called Warstar, they destroy Heaven's Tower, the bridge between the Earth and the Gosei World, home of the Gosei Angels, to keep them from interfering.
However, five apprentices, Gosei Angels, are on Earth at the time, and while
