Medieval Japan.
In this era, powerful warlords ruled various regions and governed the people.
Among them was a country called Bungo Province.
Bungo Province was originally ruled by Momowaka (Momowaka), a female warrior with extraordinary bravery and intelligence, and enjoyed peace and prosperity.
Momowaka was kind to the people, practiced fair politics, and was revered by the people as "O-Hime-sama" (Great Princess).

However, 5 years ago, Momowaka disappeared on her way back from exterminating a demon called Dokukumadoji (Poison Bear Child), who was committing evil deeds.
Momowaka 's aide, Beppu Muneshige, became the governor of Bungo Province.
As soon as he gained power, he revealed his true nature, imposed heavy taxes on the people, and mercilessly punished those who resisted.
The once rich Bungo Province has now become a dark land ruled by hunger and fear.
Beppu built a gorgeous palace and lives a life of luxury, indulging in wine and meat every day.
Even now, the legend of Momowaka is secretly passed down among the people, and there is no end to the voices wishing for her return.

Jordan is a fisherman.
One day, he encountered a storm, and the ship he was on was severely damaged and wrecked.
Jordan, barely managing to crawl, reached an uninhabited island, where he collapsed and lost consciousness.