|A nukekubi as depicted by AnnT33k.|
Nukekubi are humanoid monsters who pass as normal humans. At night, however, their heads detach from their bodies and levitate. Their bodies become lifeless during this process, leaving them vulnerable to attack. As heads, they hunt down humans for food. They like to shriek to scare their prey before plunging their teeth into their throats.
However, they must return to their bodies before sunrise or else they will die. As a way to kill them, humans may destroy their bodies or hide them so they are unable to return in time.
Nukekubi often live in groups, masquerading as a human family. They can also be detected by red symbols around their necks where the heads detach; however, they can easily hide them with clothing or jewelry.