In the original series, Diana first appeared from the future in the fourth season.
In the original series, The girls, Luna and Artemis had all met Sailor Pluto beforehand when she spiritually manifested herself through Luna-P to aid them in saving a sleeping Chibiusa by sending them into her nightmares.
To go to the future, Chibiusa says the words: "O Guardian of Time, cut through the heavens and open the Door of Space and Time for me. I call thy true name, almighty God of Time, father of the Guardian, Chronos. Grant me guidance. Grant me protection. Show me the path of Light!"
Sailor Mercury, Sailor Mars, and Sailor Jupiter do not appear in this episode but are mentioned many times.
In this episode, it is revealed that Prince Demande desires the Queen of Crystal Tokyo.