Onibi (Demon Fire) is a type of atmospheric ghost light in Japanese legend. One of the types of youkai that is shaped like a fireball and is extremely dangerous. Onibi is a beautiful but deadly phenomenon. They look like small fireballs, usually blue or white (red and yellow onibi are less common), and occur in groups of twenty to thirty individuals. Onibi spheres can range in size from three to thirty centimeters and often hover at eye level. They appear in places surrounded by nature, grasslands, forests, watersides, graveyards — most often during the spring and summer months, and especially on rainy days. According to folklore, they are spirits born from the corpses of humans and animals. It is not known what causes the onibi to be born; sometimes they show up and sometimes they don't. Intense grudges and malice can also create onibi. They are considered identical to the will-o'-the-wisps of English folklore. Onibi doesn't generate much heat, but is dangerous in other re
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