An automata awakens in a basement with no memory or purpose. She is not alone, but her fellow doll sits broken and unresponsive.

During an outing, Haizakura's upbeat attitude clashes with Gekka's more stoic personality. How did the automaton become so cold, and why can't she seem to smile anymore?

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.

It's only logical to fix a malfunction, but Karasuba is offended that Haizakura suggested Nagi repair her.

An automata's philosophical proof of existence can be measured as such: "I have orders, therefore I am." But if that's true, then what is an automata with no orders at all?

While Master Nagi travels abroad on a military mission, the dolls contemplate attending the Capital Fair, and a kindly elderly couple takes a shine to Gekka.

A doll’s duty is never done. After receiving worrisome news, Karasuba and Haizakura venture beyond the walls of the Black Cat on an important mission.

A lost automata wanders into the path of the Black Cat’s staff, but who exactly is she? They’ve never seen a model quite like Haikagura before…

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.

Two sisters, forged in secret. A successor, made in memory. Fragments of the past and future collide as Haikagura attempts to assume control.

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.