Nikaidou
, 二階堂
Kaiman's friend Nikaidou owns Hungry Bug, a restaurant in The Hole. She discovered him after his initial change and has been with him ever since. They work together to find the magic user responsible for transforming Kaiman and hunt down those who enter The Hole.
As the story progresses, it is revealed that Nikaidou is also a magic user and has some ties in the Magic Users World. It is later revealed her power
As the story progresses, it is revealed that Nikaidou is also a magic user and has some ties in the Magic Users World. It is later revealed her power is the control of time.When she trains with the ex-devil, Kawajiri, she discovers that her magic can only be used a limited amount of times before eventually becoming completely unusable.
