Nigel Kirkland is a former Genom employee from America who worked as an assistant to Sylia's father in his work on prototype Boomers. He owns his own motorcycle repair shop, but still uses his skills to help Sylia by being the main mechanic of the Knight Sabers, as he routinely performs maintenance on the hardsuits and eventually builds new ones. He is also a target of romantic feelings from both Priss and Sylia. He also befriends Mackie and has him be his assistant.