Space Pirate Mito 2

Aoi was raised as a normal boy on Earth, but he's actually the heir to Mito, a powerful space pirate queen of an alien species. After Aoi and Mutsuki, the police officer tasked with capturing Mito, work together to save the universe, Aoi undergoes a transformation, changing gender. Now, a rival queen emerges with immense power, threatening the galaxy, and Aoi seeks Mutsuki's help in defending Earth and her new role as queen.