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It is the future. For the past few years, humanity has been held hostage by the terror of an uncanny weapon called Bagchine. Yet, out of dark despair, a ray of hope begins to dawn. Salvation might just have come in the form of a tribe of warriors: the AMDrivers. A product of AMTechnology, they are engineering science's latest miracle. The world watches as our heroes Jenus, Ragna, and Sera graduate from training school and start their careers as fresh, young AMDrivers.
Licca and Izumi has been asked to babysit Izumi's relatives, Aki and Tomo. Izumi is more focused on baking cookies, leaving Licca to fend for herself with a distrustful Aki and an unsure Tomo.