Hazuki

is a manga series written by Satoru Akahori and drawn by Hiroshi Itaba. It was serialized in the Japanese magazine Young Animal.

Mouse was adapted into a twelve episode anime television series written by Hiroyuki Kawasaki, directed by Yorifusa Yamaguchi, and produced by Media Factory and Studio Deen.

In 2005 a one-volume manga prequel was published, titled: Mouse Bakumatsu-den.

For 400 years, there was a family of thieves stealing money and priceless property, particularly those items that were originally illegally stolen. The main motivation is that anything and everything can be stolen, no matter how much they protect that item. And in those years, that thief was only known by one name, Mouse.