Event Year: 1992

Sailor Moon is left devastated after seeing Mamoru get abducted right before her very eyes. To make matters worse, Nehelenia's action is starting to cause a time paradox, which threatens to end Chibiusa's existence.

People all around Tokyo, including Mamoru, become entranced by mirrors. Usagi remembers a shadow she saw in Mamoru's mirror, and races off with the other soldiers to find him.

While Queen Nehellenia continues to exert her evil influence on the earth, the rapidly aging Hotaru re-awakens as Sailor Saturn.

As Usagi and her friends begin high school, a mysterious force releases Queen Nehellenia from her mirror, encouraging her to take revenge on them.