"Star Wars: Leia, Princess of Alderaan" is a manga adaptation of Claudia Gray's novel of the same name, set in the Star Wars universe. The story explores the formative years of Leia Organa, focusing on her journey from a young princess to a key figure in the Rebel Alliance. The narrative begins with Leia at the age of sixteen, preparing to undertake the traditional rites of passage to claim her royal title as heir to the throne of Alderaan. These challenges, known as the "Day of Demand," test her skills in diplomacy, leadership, and physical endurance, reflecting her growth into a capable and compassionate leader.

Leia's journey intertwines with the growing unrest in the galaxy under the oppressive rule of the Galactic Empire. As she uncovers the harsh realities of Imperial control, she becomes increasingly aware of her parents' secret involvement in the nascent Rebel Alliance. This discovery forces her to grapple with her own moral compass and the responsibilities of her position. Alongside her personal trials, Leia forms meaningful relationships, including a close bond with Kier Domadi, a fellow student with whom she shares a romantic connection. However, their differing views on the Empire create tension, highlighting the personal sacrifices required in the fight for freedom.

The manga also delves into Leia's interactions with key figures from the Star Wars saga, such as Mon Mothma and Bail Organa, who play pivotal roles in shaping her understanding of the galaxy's political landscape. Her encounters with these characters, as well as her experiences on missions to planets like Wobani and Naboo, further solidify her resolve to oppose the Empire. The story culminates in Leia's decision to fully embrace her role in the Rebel Alliance, setting the stage for her future as a symbol of hope and resistance.

The manga captures the essence of Leia's character, emphasizing her intelligence, determination, and unwavering commitment to justice. It provides a deeper understanding of her motivations and the events that shaped her into the iconic leader seen in the original Star Wars trilogy. The adaptation remains faithful to the source material, offering fans a visually engaging exploration of Leia's early life and the broader political context of the Star Wars universe.