The Sailor Guardians' latest set of adventures unfold in April, when the cherry blossoms of Tokyo are in bloom, and the Japanese capital is in a festive mood, as it celebrates the largest Total Solar Eclipse of the century. As the new moon obscures the sun and gradually dims its light, Usagi and Chibi-Usa encounter Pegasus, who is in search of the chosen Maiden who can break the seal of the Golden Crystal. At the same time, a mysterious troupe called the Dead Moon Circus appears in town, their nefarious plan being to scatter nightmare incarnations known as Lemures, to seize the 'Legendary Silver Crystal,' and to rule over the moon and earth, eventually coming to dominate the entire universe.