Junker T.09 is a strange AI which has a strong appetite for Arcadian materials. No one remembers who designed it or even why it has such a strong interest for materials. Junker won't let anyone open it so no one really knows how it works. But its code appears to be full of bugs. However, Junker can craft anything in no time (if it gets the materials that it wants!).
Upgrading T.09 Multitasking allows Junker to simultaneously craft several items. The higher Junker's level, the more elements it can simultaneously produce.