Shadow Galactica been played by two actresses, Haruko Yamaguchi and Megumi Wakamatsu. and appear only in Act 48 of the manga. Sailor Lethe is named for a naiad in Greek mythology, and for a river of the Greek underworld where dead souls go to forget their past lives before being reincarnated. Sailor Mnemosyne is named for the Titaness of memory, the mother of the muses, as well as another river in the underworld which brought remembrance and omniscience. Sailor Lethe has an attack called "Galactica Myosotis Alpestris", which she used to attack Usagi. Myosotis alpestris is the name of an alpine species
Argyra (mythology) this river will forget their pain. Argyra (mythology) In Greek mythology, Argyra (; Ancient Greek: Ἀργυρᾶ) was one of the Naiads, a nymph who resided in a well. There was a city in ancient Achaea, also named Argyra, that was the site of a spring. According to legend, the nymph Argyra was in love with a shepherd named Selemnus whom she visited frequently. But when he aged and his youthful beauty vanished, she forsook him. When the boy died of grief, the goddess Aphrodite out of pity changed him into a river. There was a popular belief in Achaia that