Aka Manto (赤マント – Red Cape) is a strange disembodied spirit (or perhaps Yōkai) said to haunt bathrooms. It also goes by the name of Akai-kami-aoi-kami (赤い紙青い紙 – Red Paper, Blue Paper).
In relation to the Aka Manto it is said the voice will approach you asking if you want a red cape. Saying yes will cause the entity to rip the skin from your back.
For the Akai-kami-aoi-kami it will ask you if you wish to use Red or Blue toilet paper. Saying you want to use red will end up in your death in a very bloody and gruesome way, and asking for blue will cause the creature to suck all of the blood from your body. If you ask for any other color then it will take you away to the underworld, never to be seen again.1
1. Yoda, H & Alt, M. (2008) “Yokai Attack: The Japanese Monster Survival Guide” Tokyo: Kodansha International Ltd.
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