The Magical Revolution of the Reincarnated Princess and the Genius Young Lady (Original Japanese Version)

Anisphia, a princess who retained memories from her previous life, takes off on a test flight of her newest invention, only to crash-land into a party where Prince Algard is breaking off his engagement with the duke's genius daughter, Euphyllia...

Anisphia returns to the palace with Euphyllia and tells both their fathers that she wants Euphyllia to become her assistant, in the hopes that it will restore her honor. Thus the two of them begin to live together in a bizarre new arrangement...

Anisphia and Euphyllia have begun living together, but Euphyllia hasn't quite gotten used to her new environment, her new job, or her new position, and seems a bit down, so Anisphia tells her she's making a special magic tool just for her.

Euphyllia is sick with fatigue from dealing with her new and unfamiliar lifestyle, but with Anisphia's gentle nursing and warm words, she quickly recovers. Ilia tells Euphyllia about her own past and Anisphia's true intentions.

Anisphia struggles to face the dragon with only her magical tools and ingenuity, but its power is overwhelming on a scale unlike anything she's faced before. Eventually, Euphyllia cannot bear to watch her any longer...

After obtaining the dragon's magicite, Anisphia and Euphyllia visit Tilty, Anisphia's friend and research partner, in hopes of developing new technology with it.

Lainie is now living in Anisphia's villa on probation. Anisphia and Tilty begin to investigate Lainie's ability, and as Euphyllia watches their friendly banter, an uneasy feeling comes over her.

Anisphia and Euphyllia have completed their lecture before the Ministry of the Arcane. During the banquet held afterward, the alarm at Anisphia's villa sounds. Anisphia and Euphyllia rush back, but the sight awaiting them there is a heartbreaking one...

Euphyllia watches the battle between Anisphia and Algard grow increasingly intense as she frantically works to heal Lainie and Ilia. Anisphia struggles against Algard's new vampiric powers, but she makes up her mind...

With Algard gone, Anisphia is the only one left to succeed the throne. Euphyllia makes up her mind to support Anisphia as her assistant and subject, but when she sees the lab all cleaned up and Anisphia forcing herself to smile, her heart wavers...

When Euphyllia is unjustly stripped of her title as the kingdom’s next monarch, the buffoonish Princess Anisphia takes it upon herself to right this wrong.

While Ilia and Lainie watch with bated breath, Anisphia and Euphyllia confront each other, each with her own conviction. Each one cares too much for the other to back down. When Anisphia strikes with all her strength, Euphyllia strikes with all her soul.