After talking with her once, use the teleport stone Central to unlock her next dialog. Talk to her two more times, then use your bed at the sleeping chambers to trigger her CG scene.
Oh I didn't know I had to sleep. Thx
The decisions are saves for later use
Hey, I had done what you said to the others, such as removing Tsubaki's debuff, but her dialogue at Ironhom Prison still hasn't changed.
