Aka Manto

Aka Manto (赤マント translated to as "Red Cape") is an entity that supposedly haunts school bathrooms or public bathrooms. Its gender, species, and motives are unknown.

The Legend
While working late in school, after all the students leave, a teacher desperately needs to use the restroom badly. He or she goes to the closest one, even though it's said to be haunted. While they are doing their business, they notice the toilet paper is all gone. Then, a serial killer, wearing a red cloak, enters the bathroom. The teacher asks if they can hand them some toilet paper. The figure asks if they want red toilet paper, or blue toilet paper. The teacher responds "red," and the figure gives them regular toilet paper, but proceeds to slit their throat, causing the paper to turn red with their blood.

A few weeks after this, a male student is excused from his classroom to use the restroom. He is put in a similar predicament, but this time, he requests blue paper. The Aka Manto strangles him until his face and arms turn blue. The next victim is a girl who is also out of toilet paper. When the red cape asks her which color toilet paper she gives a different color (the color is 'green' in most versions). She mysteriously disappeared, and her fate is unknown.

Theories
Several theories exist about the creature's identity.
 * The most commonly used is that it is a person (albeit a homicidal maniac), hiding in the adjacent stall that targets random people when the bathroom stall runs out of toilet paper.
 * The second most commonly used theory is that it is a ghost or demon that haunts the bathroom for unknown reasons.
 * Continuing this is the idea that the third victim was dragged directly to hell for trying to outsmart the demon.

Trivia

 * It is said that requesting yellow paper will result in the Aka Manto slamming the victim into the toilet, either being drowned or slammed into but surviving.
 * In some versions, instead of strangling the victim, they are exsanguinated, which also causes blue skin.
 * Apparently, the only way to survive the encounter is to decline the use of any toilet paper.
 * In Scream Queens, Denise Hemphill mentions this story while scaring the Chanels.
 * In a comedic twist, she is offered red or blue paper, and mistakes the Red Devil for the Aka Manto.