Twlingkazvel was a humanoid demoness, featuring a lower body resembling a young human woman, with her upper half covered in thick fur leaving only her hands and large eyes uncovered.
Twlingkazvel is only shown to be capable of flight.
After Akira Fudo had gone a killing spree against the demons attacking Tokyo, he is knocked out by Psycho Jenny. Afterwards Fudo is surrounded by vengful demons, among them being Twlingkazvel, and as with the others she tries to kill him while he was down. Fudo however is saved when Zann comes down and tells them that Akira is to be left alive due to the wish of Satan.