I have honestly no idea where this idea came from, I just randomly wondered where Kiyone was in the OVA. I may add some more chapters later when she gets reunited with Mihoshi but I'm not entirely sure where I'd go from there.
The asteroid was not listed on any star maps, it did not feature on the GP's database but it was there. Its existence known only two a select few of the Daluma guild, it lay in the void between two uninhabited star systems on the edge of Union territory. Its population consisted of about fifty pirates and several hundred slaves. Since the collapse of the guild it had become mostly self sufficient; the slaves mined the rock for precious minerals and the remaining pirates sold them on for money to fund their many vices.
The slaves had lived on this hunk of rock for many years now; most of them were too far gone to remember their own names, their personalities completely crushed. Except for one. They called her "Blue hair crazy lady". No-one knew her actual name. Rumor had it that she had been an officer in the GP, that the stress of being captured had driven her insane. Every day she's wake up with a smile, she'd bounce out of her meager cot whistling happily to herself, although not actually enjoying the cruel bite of the slave drivers whips she did not particularly care about them, she seemed to enjoy the harsh back braking labor. If one could look into her mind they would see that it wasn't the conditions she enjoyed but rather the absence of a condition. There was something missing from her life that had caused her much pain and misfortune and now it was gone.
Those few who actually went close to her while she was working claimed she only said one word, ever. When she said it, it was the only time she ever showed any emotion other than joy, her voice was filled with anger as she brought down her hammer onto rocks, shattering them into millions of tiny pieces. She would say this word with each stroke. No-one knew what this word actually meant, some said it was the name of her home planet, others the name of a person, many believed it was just a nonsense word. Still the nightmares of all the slaves were filled with dreams of her coming for them in the dead of night, of her bringing down her hammer on their skulls, all the time saying that one word: "Mihoshi."