"Walkure Romanze" is set in a world where jousting tournaments are a popular and prestigious sport, blending medieval traditions with modern elements. The story centers around Takahiro Mizuno, a former jousting competitor who now works as a squire at the prestigious Wiess Schwarz Academy, a school dedicated to training young women to become "begleiters," or knights, in the sport of jousting. Takahiro's role as a squire involves supporting the knights by maintaining their equipment, training their horses, and assisting them in honing their skills.

The narrative unfolds as Takahiro is drawn back into the world of jousting when he is asked to assist several of the academy's top knights. Among them is Mio Kisaki, a childhood friend and skilled knight who harbors feelings for Takahiro. Other prominent characters include Noel Marres Ascot, a talented but aloof knight with a mysterious past; Celia Cumani Aintree, a noble and disciplined knight who struggles with her own insecurities; and Lisa Eostre, a cheerful and determined knight who often serves as a source of comic relief. Each knight has her own motivations and challenges, and Takahiro's interactions with them reveal their personal struggles and growth throughout the series.

The plot revolves around the preparations for the annual jousting tournament, a high-stakes event that serves as the culmination of the knights' training. As the tournament approaches, tensions rise, and the characters must confront their fears, rivalries, and aspirations. Takahiro's role as a squire becomes increasingly important as he helps the knights overcome their obstacles, both on and off the field. The series explores themes of camaraderie, perseverance, and self-discovery, with the jousting matches serving as a backdrop for the characters' emotional and personal development.

While the focus is primarily on the knights and their journey, Takahiro's own growth is also a key element of the story. His past as a jousting competitor is gradually revealed, shedding light on his decision to step away from the sport and his eventual re-engagement with it. The relationships between Takahiro and the knights are central to the narrative, with moments of humor, drama, and romance interspersed throughout the series.

"Walkure Romanze" combines elements of sports, romance, and slice-of-life, creating a story that balances action with character-driven moments. The jousting matches are depicted with a mix of intensity and strategy, highlighting the physical and mental demands of the sport. At its core, the series is a character study, exploring the ambitions, insecurities, and bonds that define its cast as they strive to achieve their goals in the competitive world of jousting.