: A passionate, cheerful, and impulsive young warrior who fights with intense spirit.

While the backdrop is a brutal war against demonic invaders, the heart of the journey is the princess's deepening bond with her chosen protector.

The princess’s wish summoned five famous historical figures, each with a distinct personality and role in her defense:

In the Warring States period of Japan, a princess named Saya lived a peaceful life until her castle was suddenly overrun by hideous demons. As her family and people were slaughtered and the castle neared its fall, she discovered a family heirloom—a dagger containing a trapped demon capable of granting wishes. In her final moments, she made a desperate wish to be saved, which transported five legendary heroes from another world to her time to protect her and her province.