Also called Xiao Jiu or little 39, this is an all-purpose medical system that bound itself to Lin Wan after she was struck by a falling chandelier at an art exhibition. It was badly damaged in a defensive battle and entered near-hibernation after bringing her to this time period. It can absorb medicinal essence from herbs to gradually repair itself. It stores the Basic Medical Handbook in Lin Wan's mind. Though currently weak and unable to activate most functions, it provides comfort and companionship rather than issuing missions. It is described as more like a beloved family member than a machine.
