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Boroboroton as depicted in Toriyama Sekien's Hyakki Tsurezure Bukuro (百器徒然袋).

The Boroboroton (Japanese: 暮露暮露団 [bo̞ɺo̞bo̞ɺo̞to̞ɴ]; meaning "tattered futon") is a tsukumogami yōkai, and is believed to be evil and dangerous to humans.


The Boroboroton is described as a tattered futon (a Japanese nap mat) who comes to life at night. It rises up into the air and throws its (former) owner out of bed, then begins to twine around the head and neck of the sleeper with the intent of strangling him.[1][2][3]


The Boroboroton belongs to a specific group of yōkai: the Tsukumogami (jap. 付喪神; lit. "artifact spirit"). Tsukugami are various yōkai derived from manmade objects, such as kitchenware, tools and everyday accessories, that have become alive, either through possession by spirits or ghosts, or through constant use for at least 90 to 100 years. Tsukumogami of this last origin often appear as new, or otherwise pristine condition despite their age.[4] Boroboroton will come to life when feeling ignored or needless. As some kind of revenge (and out of frustration), they float through the rooms of inhabited houses at night and try to strangle any sleeping person they can find. Alternatively, they meet with other Tsukumogami and throw noisy parties or they leave the house and stroll around in search of other companion beings.[1][2][3]


  1. ^ a b Kenji Murakami: 妖怪事典. Mainichi Shinbunsha, Tokyo 2000, ISBN 9784620314280, p. 309.
  2. ^ a b Sekien Toriyama, Mamoru Takada, Atsunobu Inada u.a.: 画図百鬼夜行, Kokusho Kankōkai, Tōkyō 1992, ISBN 9784336033864, p. 302.
  3. ^ a b Tani Akira: 金森宗和茶書. Shibunkakushuppan, Tokyo 1997, ISBN 4784209441, p. 312.
  4. ^ Michaela Haustein: Mythologien der Welt: Japan, Ainu, Korea. ePubli, Berlin 2011, ISBN 3844214070, p. 25.