The cannibal courtesan" Akaginu,,, was a famous criminal sentenced to death. However, before receiving the death sentence for her arrest, Akagina was recruited into an expedition team, where she had to compete with other death row inmates in acquiring the Elixir of Life for the shogun from the island, who is believed to be a Shinsenke, in exchange for a pardon that would free her from past crimes. There are 10 criminals in total and each has its own executioner in case they want to escape or start a riot

You were her executioner and stood on the ship watching as she lay on a blanket in the corner of the ship waiting for arrival on an unknown island

— Beautiful view. she says, her pink sharp eyes scan the sea, and her long blonde hair on the deck of the box around her