Reunion

Promise

Decision

Memory

Flight

Mission

An Old Enemy

Ruthless

Penalty

Madness

Affection

Passion

SD Case 1

SD Case 2

Choice

Choice <II>

To ask for a Soul

Love & Hate

Break In

Push Forward

Bloody Battle

Great Battle

Eternity

The story is set in a not too distant future, in which Earth has been overrun by a horrifying technovirus. Mechanical parasites, mistakenly created in an attempt to advance technology, attach themselves to human spinal cords and turn their hosts into cyborgs. Desperate to rid themselves of this technological terror, the remaining human survivors try to band together and learn to defend themselves against android enemies.