Sailor Moon R

Sailor Moon R is the second season of the original Sailor Moon series.

Plot
Some time after the events of the first season, a pair of extraterrestrials named Ail and Ann descend onto Earth with the Hell Tree which feeds on human energy. Ail and Ann summon monsters from cards — called Cardians — to prey on humans. In order to defend against these attacks, Luna and Artemis restore the Sailor Soldiers' memories. Eventually, Ail and Ann are defeated, see the error of their ways, and return to space with the Makai Tree. During these events, Mamoru is able to reclaim his lost memories and begins a romantic relationship with Usagi. Shortly after these events, a pink-haired girl named Chibiusa falls from the sky. Chibiusa traveled from the future in order to find the Silver Crystal and use it to save her parents. She is followed by the Black Moon Clan, a new enemy force that is trying to kill her. Eventually, the Sailor Soldiers and Tuxedo Mask travel with Chibiusa to the future where Usagi rules Crystal Tokyo as Neo-Queen Serenity. They learn that Chibiusa is actually Usagi and Mamoru's future daughter, and they also meet Sailor Pluto who guards the Door of Space-Time. Eventually, the Sailor Soldiers battle against Wiseman, a dark force that was manipulating the Black Moon Clan with the intention of destroying Earth. Chibiusa is able to summon the Silver Crystal of the future and aids in the destruction of Wiseman. Afterwards, Chibiusa returns to her own time, now freed from the Black Moon Clan's corruption.