Bubblegum Crisis Tokyo 2040

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.

When Priss is trapped in a cafe with a rogue boomer that is too much for the AD Police to handle, it falls to Linna and Nene to tackle the monster. But with both Linna and her hardsuit untested in battle, can the Knight Sabers hope to emerge victorious in this engagement?

When a rogue boomer takes over a factory and starts absorbing all the machinery there, the Knight Sabers must spring into action despite the overwhelming AD Police presence. What the team doesn't realise is that the entire situation has been manufactured by Genom, who are looking to capture the Knight Sabers. Will Linna, Priss and Nene fall into Genom's trap?

Stuck in the factory, Linna, Priss and Nene are low on power and out of options, leaving it up to Sylia to don her hardsuit and save them from the ADP. Meanwhile, a surprise reunion is in the works when Sylia's younger brother Macky comes to live with her.