The Jail suddenly appeared a number of years ago, sinking the city deep into the ground. There, the Jail had power over eerie creatures called Marchens.

Within the prison was a boy named Jack - living a life of suffering, tortured day in and day out, in a world where all dreams, hopes, peace, and humanity had been lost for as long as the people could remember.

Then one day, amidst the darkness that prevailed, a girl who called herself a member of the Blood Team came and rescued Jack from the prison. This marked the beginning of fate - of Jack's and the Blood Maidens' escape from the Jail...

Jack and the Blood Team will face countless perils in regaining all that has been lost, to finally escape once and for all!