|Nushi no Orochi|
|Manga Debut||Chapter 15|
|Voiced by||Kouki Miyata|
Nushi no Orochi (ヌシの大蛇) is a yokai and the guardian serpent of Mt.Tsukuna in M city who calls on Kotoko Iwanaga to solve the mystery of what he heard.
Nushi no Orochi takes the appearance of a large snake, indistinguishable from any common, single colored snake if not for the markings on the top of its head or its size.
Despite being a spirit that has watched over Mt.Tsukuna for centuries, the serpent is a curious and stubborn being who fusses over little details like phrasing and how people see him. He is concerned about how people see him as a man-eater and prefers to eat young virgins if he had to.
As a guardian serpent, he has spent centuries taking care of Mt.Tsukuna and observing the people who visit the mountain. He has been worshipped as a water god since ancient times and people have given him human sacrifices to ask for rain, despite the fact that he really has no power over water.