Tuyul (Javanese: thuyul) in the mythology of only the island of Java, and its surroundings, especially on the island of Java, is a creature in the form of a dwarf with a bald head of an Ifrit genie. Another description that is not agreed upon by everyone is silvery-colored skin, social in nature (in the sense of having a community and a leader), and voicing like chicks. Tuyul can be employed by a human employer for certain reasons, especially stealing (money). To ward off tuyul, people put up Yuyu in a number of corners of the house because Tuyul was believed to like Yuyu so he forgot about the duties charged by the owner. Tuyul events are believed to originate from fetuses who have miscarriages or babies who die at birth. Because it comes from a baby, the tuyul character is also like a child: likes to play (like reports of people seeing a number of playing at midnight, etc.). But in the belief of the divine religion (Islam, Christianity, Jews) Tuyul is a spirit from the Jinn group. In Tuyul Islam it is categorized as the genie of the Ifrit type
The mystical world cannot be separated from public trust, especially in Indonesia. Not a few who still believe in mysticism and superstition in this era of technological age.