"Princess Princess Plus" is a manga series that expands on the original "Princess Princess" story, written and illustrated by Mikiyo Tsuda. The narrative is set in an all-boys high school, Fujimori Academy, where a unique tradition exists: to improve the morale of the student body, three male students are selected each year to dress as female "princesses" and participate in school events. These students, referred to as "Princesses," are chosen based on their physical attractiveness and are expected to embody grace and charm.

The story primarily revolves around three main characters: Toru Kouno, Yuujirou Shihoudani, and Mikoto Yutaka. Toru, a transfer student, is initially reluctant to take on the role of a Princess but eventually embraces it, finding camaraderie and purpose in the position. Yuujirou, a confident and flamboyant student, enjoys the attention and adoration that comes with being a Princess, often using his role to uplift others. Mikoto, the most reserved of the trio, struggles with his identity and the expectations placed upon him, but his quiet strength and dedication earn him respect among his peers.

The plot explores the dynamics between the Princesses and their classmates, as well as the challenges they face in balancing their dual identities. School events, such as festivals and sports days, serve as key settings where the Princesses must perform their duties, often leading to humorous and heartfelt moments. The series delves into themes of friendship, self-discovery, and the breaking of traditional gender roles, as the characters navigate their roles and relationships within the school.

Supporting characters, such as the student council members and other classmates, play significant roles in the narrative, providing both comedic relief and emotional depth. The interactions between the Princesses and their peers highlight the importance of acceptance and individuality, as the characters learn to embrace their unique qualities and support one another.

"Princess Princess Plus" builds on the foundation of the original series by introducing new scenarios and further developing the characters' backstories and relationships. The manga maintains a lighthearted tone while addressing deeper issues, creating a balanced narrative that appeals to a wide audience. The series concludes with a sense of closure, as the characters reflect on their growth and the impact of their experiences at Fujimori Academy.