In a strange world where giant fungi form cities and memories can be extracted as currency, top memory surgeon Lin Yin is trapped in a traumatic nightmare of erasing his sister's personality with his own hands. He longed to completely remove this memory, but found a mysterious door on the wall of the apartment that could only be opened in response to his sister's relics. What came from behind the door was the call of my sister's remaining consciousness, and also the whisper of the terrifying virus that devoured basic human concepts such as "love" and "hope." Lin Yin was forced to embark on the road to redemption, but gradually discovered that the conceptual plague spreading across the world actually originated from his festering past. He must face the ultimate choice: become a doctor who destroys viruses, or learn to perform a dangerous surgery that coexists with trauma for this troubled civilization?
