Who is Serenity?
All female moon rulers are named Serenity. Sailor Moon’s mother in the Moon Kingdom was Queen Serenity. Sailor Moon is Princess Serenity and in the future, Crystal Tokyo, she will be called Neo-Queen Serenity. Chibi-Usa (Rini)’s name in Crystal Tokyo is Small Lady Serenity and when she grows up, she will be called Princess Lady Serenity, according to the manga.