An AI system companion assigned to host Lu Yan. It has an electronic voice and patiently soothes the host's emotions during missions. System 729 was poached by the Romance Department along with Lu Yan and cannot easily let him return to the No-CP Department. It disapproves of the male and female leads bothering the host but remains subservient to its duties. It serves as Lu Yan's mission guide and emotional support throughout the transmigration assignments.
