Riki has been transferred to another unit within the police force. Disliking administrative work, Riki is pleased to learn that his new duty involves test-driving a vehicle secretly developed by the department, sparing him from paperwork. However, the vehicle defies Riki's expectations: it is a talking car adorned with a mascot girl on all sides. This "Patrol Car with Artificial Intelligence and Technical Illustration," named Pattie 2000, speaks like a human. The car can converse, react swiftly to situations, and features various technological advancements, such as maps displayed on glass... and it can even transform into a girl!?!? Technology is grand, isn't it?