Complex sentence: The Magical Kingdom is led by their king Munto who believes the only way to save the Heavens from destruction is to seek out Yumemi Hidaka who holds the key to restoring the Akuto to the Heavens.
Split into simpler sentences: The Magical Kingdom is led by their king Munto. Munto believes the only way to save the Heavens from destruction is to seek out Hidaka Yumemi who holds the key to restoring the Akuto to the Heavens.