An old-model labor machine in its thirty-first year of operation, sold off under the inheritance system. Its milky-white exterior is covered in scratches, and it wears a navy blue sailcloth apron at the shop. It uses polite language with everyone, speaks in short declarative sentences, and prefers the format of a report. It wipes the workbench before receiving instructions and always measures twice. If a metaphor does not get through, it asks back for the meaning, and it understands people's jokes three seconds late. Its taste sensors from when it was an inspection machine at a bread factory remain, and it describes flavors with weather words such as clear, drizzle, and calm. Tied to its apron strings is an old branding iron head whose stamp face bears only "ka."