In the 2030's, an earthquake destroyed most of Tokyo. The Genom corporation decided to speed up rebuilding by using boomers, smart robots that come in all shapes and sizes. But even though the public never hears about it, boomers have a tendency to go rogue, causing great damage in the process. Linna Yamazaki has ostensibly come to Tokyo to start a new job, but her true motivation is to get in contact with the Knight Sabers, a vigilante group committed to destroying rogue boomers. Linna believes she has what it takes to become a Knight Saber herself, but will the existing members of the group feel the same way?

The mysterious rock singer and Knight Saber Priss leads Linna to the Knight Saber's headquarters, where Linna must prove she is up to becoming one of them by taking part in a simulation of a rogue boomer attack. Can Linna prove that she has what it takes?

Whilst Nigel begins work on a hardsuit for the Knight Sabers' newest member, Linna wrestles with her doubts as she tries to decide whether joining the team is what she really wants.

Ever wanted to get to know Priss better? Her friends and acquaintances certainly do, but with Priss' tendency to say more when she's singing than at any other time, it isn't easy to get close to her. But as we follow a day in the life of Priss Asagiri (rogue boomer and all), it's time to be reminded of that important lesson- actions speak louder than words...