S [OVA] Do Robots Dream of Bathhouses?

An unaired episode released with the sixth BD volume.
Since Kyouma forgot to pay the water bill and the water is cut off, he has no choice but to take Mira to a bathhouse. Kyouma reluctantly hangs out with Albert, as Mira and Ellie discuss why Kyouma always refers to Mira as a "piece of junk". Tsubaki, Hirose and Ayukawa from the kimono shop join Mira and Ellie, and they give Mira some basic advice about human behavior before Mira departs with Kyouma.