It is known for its appetite for rice and the problems it causes with the lungs. If the Haimushi exits the lungs and cannot find its way back, it turns into a fiery will-o'-wisp hitodama and the person dies.
The herb byakujutsu is effective in warding off Haimushi.
|"As unpredictable—and probably just as controversial—as UFOs, Leyak are a supernatural phenomenon most feared by many Indonesians."|