"Princess Prince" is a manga series that blends elements of romance, comedy, and gender-bending themes. The story centers around Yuuri, a young boy who is forced to disguise himself as a girl to attend St. Noble Academy, an all-girls school. This unusual situation arises due to a family tradition that requires the eldest son to attend the academy in place of a deceased sister. Yuuri, now living as "Yuuko," must navigate the challenges of maintaining his secret while adapting to life at the prestigious institution.

The narrative explores Yuuri's interactions with his classmates, particularly his growing relationships with two key characters: Rei, a stoic and enigmatic student, and Shouta, a cheerful and outgoing classmate. Rei, who harbors a mysterious past, becomes a central figure in Yuuri's life, while Shouta provides a contrast with his lighthearted and supportive demeanor. As Yuuri struggles to keep his true identity hidden, he becomes entangled in various comedic and dramatic situations, often involving misunderstandings and romantic tension.

The plot delves into themes of identity, self-discovery, and the complexities of relationships. Yuuri's dual life as both a boy and a girl creates a dynamic backdrop for exploring these themes, as he grapples with his feelings for Rei and Shouta while trying to reconcile his own sense of self. The series balances lighthearted moments with more serious undertones, particularly as Yuuri's relationships deepen and the stakes of his deception grow.

Throughout the story, the academy setting serves as a microcosm for the characters' personal journeys, with its strict rules and traditions often clashing with the characters' desires and emotions. The manga's pacing allows for gradual character development, with Yuuri, Rei, and Shouta each undergoing significant growth as they confront their own insecurities and aspirations. The interplay between humor and emotional depth creates a narrative that is both engaging and thought-provoking, making "Princess Prince" a distinctive entry in the genre.