No ano 672 da era Chandena, no quarto dia do mês da lua de jade, o Reino de Forland sofre um golpe de estado orquestrado pelo Dr. Akamashi e seus andróides Ana e Yuna, forçando a Princesa Alita a fugir. Durante sua fuga para a floresta, os cavaleiros de sua escolta são mortos e ela é perseguida por uma criatura. Em desespero, ela encontra o infame Falis, o mais forte caçador de recompensas da história. No entanto, em uma reviravolta inesperada do destino, os dois caem de um penhasco e trocam almas devido ao acidente. Agora, Falis, no corpo de Alita, assume a responsabilidade de salvar a nação. Assim nasce a princesa mais forte e mais feroz da história, a "Princesa Assassina".
Romi Park • Ami Koshimizu • Hiroshi Tsuchida • 豊口めぐみ • Kazuki Yao • 石森達幸 • Daisuke Namikawa • 高瀬右光
In order to preserve her noble bloodline, Princess Alita reluctantly flees her besieged kingdom. Her hasty escape takes a curious turn when a collision with the infamous bounty hunter Falis leads to an unwilling exchange of souls.
After the successful liberation of Forland Castle, Alita vows to serve Falis by posing as the newly-crowned queen's handmaiden. All goes according to plan until the coronation festivities are interrupted by a genetically engineered monster.
A shattered keepsake creates a rift between Alita and Falis. When the bounty hunter races off to slay goblins, Alita is captured by Dr. Akamashi. Falis returns for a daring rescue, but she'll need help to even the odds.
Prince Kaito's return has Falis and her crew planning their departure. Although crushed, Alita reluctantly accepts her friend's desire for adventure. But before they part ways, a mysterious woman uses her powers to cast the heroes as outlaws.
Falis is badly wounded during a daring escape. With Kaito and the royal army in hot pursuit, the unlikely band of allies strikes out for the border - until Dominikov's fireside revelations reveal the powerful force drawing evil to Forland.
