Theatrical compilation of .

Megu is sent to Earth in her early teens, she is adopted by Mammi Kanzaki, a former witch who gave up her royal ambitions to wed a mortal. Mammi bewitches her husband and their two children, Rabi and Apo, into believing that Megu has always been the eldest child of the family. Under Mammi's tutelage, Megu learns to control both her abilities and impulses in order to prove her worthiness for the crown. This Rite-of-Passage subtext is continued throughout the series.

Atsuko "Akko-chan" Kagami (known variously as "Stilly," "Caroline," or "Julie" in Western versions of the anime) is an energetic elementary school girl who has an affinity for mirrors. One day, her favorite mirror which was given to Akko by her mother (or in some versions, by her father, as a present from India) is broken, and she prefers to bury it in her yard rather than throw it to the trash can. In her dreams, she is contacted by a spirit (or in some cases the Queen of the Mirror Kingdom) who is moved that the little girl would treat the mirror so respectfully and not simply throw it away. Akko-chan is then given the gift of a magical mirror and taught an enchantment that will allow her to transform into anything she wishes.

Decades after the sentient artificial intelligence Skynet took control of the planet in 2022, the resistance is still fighting against the machines. Following a fierce battle, Eiko, a guerilla soldier in Japan, manages to corner a Terminator—Skynet's elite killing cyborg. Eiko extracts crucial details of its plan, allowing the resistance to send her back in time and secure a different future. In August 1997, days before Skynet's looming nuclear attack known as Judgment Day, Malcolm Lee works on launching Kokoro, a new AI model designed to fight for humanity. As Judgement Day approaches, a Terminator arrives in Japan to hunt Malcolm and his children before Kokoro becomes self-aware. Malcolm must prevent his creation from getting misaligned and coming to the same conclusion as Skynet: the extinction of humans.