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?

Clients are in short supply after recent incidents involving automata, but Haizakura has an idea to attract new patrons — an idea that requires advice from an unlikely source…

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.

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.