Episode Title:
Infinity 6 Three Guardians.
Episode Description:
Sailor Pluto reveals that she was revived by Neo Queen Serenity and returned from the future by her request as she, Uranus and Neptune explain their mission to Usagi, who transforms into Princess Serenity, of dealing with threats beyond the Solar System; the Death Busters being one of these threats. After learning that Mugen Academy having been closed due to the controversial disappearances, Luna convinces Chibiusa to use her friendship with Hotaru to act as a spy on Tomoe for them. Chibiusa discovers that Hotaru has some bio-mechanical parts implanted on her body and flees in fear. Soon after, a hailstorm begins and drains the Hostes of those it touches and turns them hostile. Meanwhile, Cyprine, the last of the Witches 5, carries out her mission to eliminate Haruka and is astonished to find her quarry to be a Sailor Guardian. When the other Sailor Guardians join her as well, Cyprine uses her power to manipulate the Sailor Guardians and the Outer Guardians to fight each other. Usagi, unaffected by the spell, attempts to attack Cyprine before she and her other half, Ptilol, split off as Mamoru and Chibiusa arrive to help Usagi. At Usagi's request, the three combine their powers together and summon the Legendary Holy Grail.
