'Jail,' an impregnable asylum referred to as "a living prison."

Birthed several decades ago, it was controlled by "Marchens," monsters led by insane beings known as "Nightmares."

Tsuu and Little Mermaid, members of the "Dawn" organization with the goal of escaping the prison, rescue Alice and her partner Jack after being captured.

In the midst of an expedition to the city, Alice was dyed in madness and ran amok slashing through anything and anyone at sight.

In an attempt to protect Tsuu from one of Alice's attacks, Little Mermaid and Jack fell off a cliff with her.

After regaining consciousness, Little Mermaid's first sight was a dying Jack.

The bloodstained story of Tsuu, Little Mermaid and Nightmare Jack trying to escape the tower and their fate begins.