In the not-too-distant future, humanity loses its fight against the Crystal Virus.
The Crystal Virus, which suddenly sweeps across the world, causes infected men to die swiftly, while infected women contract an incurable disease known as "Crystallization Disease."
Those afflicted with Crystallization Disease live no longer than thirty years, and depend on "furnace implants" to sustain their everyday bodily functions.
In this desperate age, when creatures infected by the Crystal Virus have seized the world and humanity is trapped in its last bastions,
Xiao Qianjian becomes a doctor who treats Crystallization Disease.
However, the patients with Crystallization Disease under his care seem a little different from normal patients.
A police officer brimming with a sense of justice, a high school girl skilled in killing, and a member of an underground opposition group at odds with the government...
No matter who they are, when they are in front of the doctor, all these young ladies should sit still and behave, and receive their treatment properly.
"Next patient, you can come in now. Please remember to take off your clothes without being asked. Thank you for your cooperation."
