Mitsuri is best known as "a colossal fuckup who's sole objective, intentional or otherwise, is to ruin everything in her immediate line of vision". Not particularly competent or gifted in any specific way, Mitsuri is nonetheless of great intrigue to many higher powers.
Why? We Just Don't Know.
Her birthday is April 27th
Her favorite food is Sheet Metal
The bell is to let you know where she is.