Poisony

Poisony (ポイズニー Poizunī?) (Pandora for the English dub) is featured in episodes 12 through 20 and is the only woman of the five denizens of the Dotsuku Zone, followed by Regine. She is the holder of the orange Prism Stone. Instead of making a big show of calling on Zakennas like Pisard and Gekidorago, she snaps her fingers and is much more discrete about it. She often takes on a human appearance to gain the trust of the girls before attacking. In her true form, she resembles a vampire due to her pale skin, dark attire with a cape, and fangs. She has the power to extend her hair and attack with it, however she only does so in her final appearance.

Poisony is the older sister of Kiriya. Or just someone seen as a sister to him and after she vanishes he vanished one episode later. Despite this, they only worked together in two episodes.