A spirited princess refuses to act like royalty, insisting everyone call her by a boy's name and spending her days whacking the shogun with a wooden sword instead of learning court etiquette. When her behavior threatens to become a genuine diplomatic incident, the clever monk Ikkyuu gets roped into the job of civilizing her. What should be a straightforward task turns into something far more complicated, as the princess proves just as cunning as she is stubborn, and Ikkyuu discovers that forcing someone to change who they are isn't nearly as simple as he expected. Their clash of wills becomes a series of escalating schemes and counterattacks, each more ridiculous than the last. The monk finds himself outmatched by pure chaos and determination, while the princess realizes she might have finally met someone who won't just give up on her. What emerges is part comedy, part coming-of-age story about finding yourself while surrounded by people determined to reshape you. Their unlikely partnership becomes the heart of a film that laughs at tradition while asking what it really means to grow up.