Houkiboshi's voice once brought hope to the troops in times of fear and darkness. Now a voice from the past will bring her the same.

In the wake of disaster, Haikagura sleeps, and her origin remains a mystery. While Nagi investigates the mysterious automata, the other dolls prepare for the Capital Fair.

Haizakura knows what she must do to save her friends, but her actions will come at a cost unimaginable. Nevertheless, Haizakura is committed to finding her purpose.