Lady Kawaguchi is a recurring character in the anime series Gundam Build Fighters. She serves as a mysterious and charismatic figure, often appearing as a judge or host during Gunpla battles and tournaments. Known for her elegance and deep knowledge of Gunpla, she guides and inspires the participants, especially the main protagonists. Lady Kawaguchi is an homage to the legendary Meijin Kawaguchi, embodying the spirit of craftsmanship and competition within the series. Her presence adds excitement and gravitas to the events she oversees.