"Rocket Girls" is a 12-episode anime series that blends science fiction and slice-of-life elements, centering on the unlikely journey of a high school girl into the world of space exploration. The story begins with Yukari Morita, a 16-year-old girl from Hokkaido, who is summoned to the Solomon Islands by the Solomon Space Association (SSA) to locate her missing father, a scientist. Upon arrival, Yukari discovers that her father has been working on a secret project to launch a manned rocket into space. The SSA, facing financial and technical challenges, devises an unconventional plan: to send a lightweight astronaut into orbit to reduce costs. Yukari, due to her small stature and low body weight, is recruited as the ideal candidate.

Initially reluctant, Yukari agrees to undergo rigorous training to become an astronaut. She is joined by Matsuri, another teenage girl with a similar physique, who becomes her fellow trainee and eventual co-astronaut. The series delves into the challenges they face, both physical and emotional, as they prepare for their mission. The training process is depicted with a mix of humor and realism, highlighting the girls' determination and the support they receive from the SSA team, including the project leader, Nasuda, and the engineer, Akane.

As the story progresses, Yukari and Matsuri must overcome technical setbacks, public skepticism, and personal doubts. The narrative explores themes of perseverance, teamwork, and the pursuit of dreams, set against the backdrop of a small, underfunded space program striving to achieve the extraordinary. The climax of the series revolves around the launch of the rocket, with Yukari and Matsuri facing the ultimate test of their courage and resolve.

The characters are grounded and relatable, with Yukari's growth from an ordinary teenager to a determined astronaut serving as the emotional core of the story. Matsuri provides a contrasting personality, often serving as a source of comic relief but also demonstrating her own resilience. The supporting cast, including the SSA team and Yukari's family, adds depth to the narrative, emphasizing the collaborative effort required to achieve their ambitious goal.

"Rocket Girls" balances its lighthearted moments with a genuine appreciation for the challenges of space exploration, offering a unique take on the genre that is both entertaining and thought-provoking. The series concludes with a satisfying resolution, leaving room for reflection on the broader implications of their journey.