Sakura is a 191-year-old kitsune, though she looks to be only 19 and Natsuki's partner for a time. She has human ancestors, thus she was born with only 8 and 1/5th tails and was teased because of it as a child. Kitsune must have a full nine tails in order to have full use of their power, thus Sakura has spent many years hunting for a powerful being to consume, in order to attain that full power. Sakura joins the Police Company after seeing Natuski in action, in hopes of consuming her in order to gain her full ninth tail. She can fly, has some minor electrical power and is an excellent shot with a gun. Sakura is from Osaka, thus has a knack for bartering and handling money. Later on she gives birth to three mischievous kids from her mating with the time-displaced samurai Sakunoshin, justifying the age-old lore of a kitsune being a mother and housewife. It is not completely clarified if the two are officially married or not though, Sakura's mother is seen to ask her at one point "when are you two coming to Osaka to get married?"

(Source: Wikipedia)