The Iyake-Mushi (嫌気虫 Iyake-Mushi, lit. Disinclination Bug) are parasitic insects that induce laziness in their hosts.
Iyake-Mushi are small, black circular insects, with a pair of wavy antennae that ends in tiny black circles and their underside consists of several legs. They are able to latch onto hosts and induce them into a state of laziness.
An Iyake-Mushi chooses Kitarō as its host, refusing to leave and staying on the Yōkai boy's cheek for most of the day. Another Iyake-Mushi resides on Anagura-Nyūdō's face and stays on him even while he is being taken captive by a director. Later, Kitarō tries to rescue Anagura-Nyūdō, where the Iyake-Mushi detects a better host, the director, and transfers to him. This makes the director complacent, making the surrounding Jaki calm and return to the cave with Anagura-Nyūdō and the director peacefully. The two Iyake-Mushi continue to reside on their hosts as Nezumi-Otoko tries to escape the cave, but fails.
Powers and Abilities
Sloth Inducement: Iyake-Mushi can cause their host to become lazy and dull, to the point that they can forget their own names. It may also make a person harmless and greedless, if they are affected by the Jaki.
Enhanced Strength: Their grip is quite strong, that even three wrenches pulling it will not remove it from its host. It will only move on from its current host if it detects a better host.
|Classes||Akuma • Ghost • Gods • Tsukumogami • Vampire • Yōkai|
|Animal-Based||Kappa • Karasu-Tengu • Werewolf|
|Animals||Bat • Dragon • Bake-Garasu • Gaikotsu-Garasu • Iyake-Mushi • Kōmori-Neko • Kitsune • Maken • Nekiri-Mushi • Neko-Mata • Nobusuma • Tanuki • Whale|
|Element-Based||Dorotabō • Mabi • Yuki-Onna • Yuki-Otoko|
|Humanoid||Kinoko • Witch • Zashiki-Warashi|
|Undead||Dorotabō • Funa-Yūrei • Mōrei-Yassan • Mummy|
|Forest Spirits||Aguri • Kijimuna • New Guinea Forest Spirits|
|Object-Based||Kami-no-Sei • Shikigami • Tsukumogami|
|Plants||Mammoth Flower • Pumpkin • Vampire Cactus • Yōka • Yōkai Cactus • Yokai-Dake|
|Tsukumogami||Bake-Tōrō • Chōchin-Obake • Kasa-Bake • Nurikabe|
|Vampires||Kyūketsuju • Nobusuma • Penanggalan • Ustrel • Vampire Cactus • Yasha|