Kita no Toride nite

A young girl from Japan finds herself reborn as a fox cub named Milfiria, characterized by white fur covering her paws, a fluffy neck, a bushy tail, and a round, fluffy body. Her mother instructs her to stay home and watch the house while she travels to the capital. Unable to cope with being alone, Milfiria decides to follow her mother, but ends up lost inside a fortress guarded by powerful knights.