Sailor Pluto reveals that she was revived by Neo Queen Serenity and returned from the future at her request. Uranus, Neptune and Pluto explain their mission to the other Sailors.
Mugen Academy is closed by order of the authorities who hold Professor Tomoe responsible for the disappearances that occurred there. To further investigate the professor's involvement with the Death Busters, Luna convinces Chibiusa to act as a spy for them, thanks to her friendship with Hotaru.
Chibiusa visits Hotaru's home to check on her, and discovers that Hotaru has some bio-mechanic parts implanted on her body and flees in fear.
Cyprine, the last of the Witches 5, attacks Haruka who transforms into Sailor Uranus to defend herself, soon after joined by the other Sailor Senshi as well. However, Cyprine uses her power of mind control on the Sailors, except for Sailor Moon, and turn them against each other. Cyprine's other half, Ptilol appears after Sailor Moon attacks her.
Tuxedo Mask and Sailor Chibi Moon then arrive, and by Sailor Moon's request, the three combine their powers together, summoning the Legendary Holy Grail.