You said that one of the Sobrekt's Kurokran recently chose a Hylurgian born on Sobr from war prisoners, which has me believe that Sobr is that Hylurgian's true home instead of Hylurg. Would that Hylurgian fight for Sobr, join the Sobrekt army to fight in the Shuryo's name?
Well, she didn't exactly join the Sobrekt military of her own accord. She worked as a janitor, and when she went inside the kurokran's building to clean, one of them came out of its pool and chose her, AKA ate her.
This kurokran had been without a Kuro'kani for years, so the higher ups were desperate to find one; however, they not happy about a Hylurgian being chosen. They don't want them involved with their gessen, not even one with Sobrekt citizenship; unfortunately for them, if a kurokran eats you, you're in. They did try to find a replacement, and it didn't end well.
Since this Hylurgian was born on Sobr, she doesn't have any loyalty to Hylurg, unlike her parents, who are war prisoners and despite living there for centuries and having grown fond of the planet, would never think of betraying their Blood Emperor. She's heard of the Blood Wars, and is aware that her colleagues don't like her because of her species, but doesn't let it get to her. She has found a few friends amongst the maintenance crew, and especially her kurokran Izaka.
If she ever came across Grigon, she'd be all casual to him because she doesn't have the same reverence for the Blood Emperor that Hylurgians born in their natal planet could. And Grigon, of course, would do everything in his power to get information out of her.
