Mini/Black Butler

Misspellings in Black Butler create Continuity Cats. Continuity Cats are long-haired black cats who appear to be about a year old. They mimic some physical aspect of their namesakes, usually eye color, but do not appear to share personality traits. Continuity Cats are also protective of their namesakes, but as far as we know, they only attack mini-Sues as opposed to actual Mary Sues.

Canon Origin
Sebastian's love of cats has been made very clear from the beginning of the series. (In the manga, he says the closest equivalent to cats in his home dimension are xenomorphs from the Alien franchise.) His particular favorite is a certain long-haired black stray that hangs around the exterior of Phantomhive Manor.

Character Minis

 * Ciel POV
 * Bardroy
 * Mey Rin (preemptively adopted by Matt Cipher)
 * Ceil