Nanvel Candlestick, referred to as Nanbel in some materials, is the team engineer and electronics expert of Team Warrior, the special anti-terror unit within the Neo-Tokyo Police force. She is an American who possesses a deep passion for invention and technology, spending her time designing and building specialized combat and surveillance hardware to support her teammates in the field. Her creations often feature a distinctive visual signature of pink and purple colors, matching the aesthetic of her own clothing. Despite her inventive brilliance, her devices sometimes contain minor flaws or bugs, reflecting an experimental and occasionally reckless approach to engineering.

Nanvel is driven by an obsessive curiosity about how machines work; she can disassemble and understand almost any device she encounters. Her motivation stems from a genuine love of creation and a desire to provide her team with cutting-edge tools, ranging from explosive devices that appeal to the gun-happy Maya to sophisticated surveillance equipment. She takes pride in winning awards for her work, as seen when she is named Inventor of the Year. This recognition, however, can make her a target: in one mission she is kidnapped and forced at gunpoint to construct an invisibility machine for a criminal gang, demonstrating that her skills are highly sought after by adversaries as well.

Within Team Warrior, Nanvel serves as the primary technical support, working alongside Lilica Ebett, who specializes in computer hacking. While Lilica handles digital infiltration, Nanvel builds physical gadgets and weaponry. Her relationship with Maya Jingu is particularly complementary, as Maya’s love for firearms finds an eager supplier in Nanvel’s explosive creations. She also interacts closely with Rio Kinezono, often accompanying her on operations and occasionally finding herself in dangerous situations alongside her. The team’s leader, Maki Kawasaki, relies on Nanvel to produce the hardware necessary for mission success, though Nanvel’s eccentricities sometimes lead to unpredictable results.

In terms of character development, Nanvel remains a consistent figure throughout the series, maintaining her inventive drive and slightly scatterbrained demeanor. Her key moments, such as the kidnapping episode, highlight her resourcefulness under pressure and her ability to think her way out of dire circumstances. She does not undergo a major personal transformation but instead reinforces her role as the reliable builder who can be counted on to deliver a solution, even if it comes with an unexpected side effect. Her notable abilities include reverse-engineering technology, fabricating custom gadgets on short notice, and adapting her inventions to rapidly changing tactical needs.