When Usagi Tsukino adopts a stray cat, she gets more than she bargains for The talking cat, Luna, informs Usagi that she is actually Sailor Moon, a magical princess from the future and protector of the Solar System. With the help of her new friends, the Sailor Scouts, and the mysterious Tuxedo Mask, Sailor Moon embarks on a quest to save us all from the evil powers of the Negaverse.