It is green the star stone -Lapisalazuri Stern

This episode opens with Souseiseki floating around a white empty space as if looking for something. She leaves after being summoned by her master (aka her medium). Turns out that Souseiseki and Suiseiseki is intially bound to an old man who looks upon Souseiseki as a replacement for his dead son 'Kadzuki'. Unable to take blow of their son's death, the old man's wife had been in a coma for a while. Souseiseki is trying to bring back her soul by searching her dreamworld (the white empty space) but has no success so far. Suiseiseki wanted to leave their master as he's becoming weirder by the day and taking his 'replacement complex' overboard. But Souseiseki refused to leave out of a sense of duty and so Suiseiseki stormed off in a fit to anger to look for Shinku. All the Rozens Maidens scattered in laughter when Jun chase after them for mangling his toy bus. When Hinaichigo and Suiseiseki hides in the storeman, the enchanted mirror shows what has transpired betwen Suiseiseki and her twin.