Linna Yamazaki is a 22-year-old member of the Knight Sabers and dons a green Hard Suit equipped with "ribbon cutters" - long, electrically-charged nanomolecular ropes mounted behind the helmet that can be used to slash through Boomers and other high-tech opponents. She is also armed with explosive "knuckle bombers" - explosive charges in the right hand of her hard suit that could deliver devastating blows, as well as a finger-mounted triplet laser gun. In Bubblegum Crash, the knuckle bombers and lasers are replaced with electrically charged twin wire-daggers.
Working as an aerobics instructor, Linna once hoped to pursue a career in professional dancing, but her efforts in the trials went unappreciated by all but Sylia, who recruited her into her team. Eventually, her constant greed for money makes her switch to stockbroker consulting in Bubblegum Crash.
Linna is perhaps the most socially conventional of the Sabers, and as such, lacks a distinct personality. But she is a excellent team player, and the stories linking episode 2 with episode 7 (Irene's death and Vision's peace) would be inconceivable without Linna's heartfelt warmth and decency. There is a comic side to her, especially in tandem with the foibles of Nene.
Linna's character is significantly more fleshed out in the 2040 series. She is the 20-year-old daughter of an old fashioned country couple, but took work in Tokyo to get away from her demanding father. At her clerical desk job in Tokyo she has to deal with managers who try to abuse their positions to the point of sexual harassment. She also must directly work under female boomer robots used as middle managers that do not allow mistakes or free time while at work.
She is not a member of the Knight Sabers at the beginning of the 2040 series, and actively tracks down Priss demanding a place with them. Later episodes continue with to show that she has high self motivation to be the best Knight Saber of the group and help as many people as possible. She even openly admits to Priss her goal is to be better than her.