A historical gag comedy depicting the uproar of a very tomboyish princess, Banana Hime. It is the Edo Genroku era, and Banana Hime, the princess of Momokuri Castle in the country of Momokuri, gets tired of her rigid lessons and escapes from the castle with her page, Matcha. And since she doesn't have any money, Banana Hime enjoys shopping and gourmet food by showing her a seal with a family crest on it, but she ends up getting tangled up by some unscrupulous ronin...!?