From the introduction: Welcome, traveler. Perhaps this world is familiar to you. A group of young Guardians wage war against the forces of evil and Chaos. Their souls tie them to Earth’s celestial siblings, the immense bodies who reside in the night sky: Luna, Jupiter, Mars… Surely you know. Peculiarly, this world seems to focus not on the protagonist of that story, but another member of the group. Haruka Tenou, the Sailor Guardian Uranus.