Yoko Ayanokoji

Yoko Ayanokoji (綾小路 葉子 Ayanokōji Yōko) or Hoashio (化蛇) is a snake demon that was sealed within Parvati's body from volumes 3-5; she returns in volume 12 with a new body and identity. She's a water-based demon with the power to manipulate water at will, with deadly results. Ends up in love with Haan Hazrat.