Seventet of Notes: the Lost City of Rain and Fog

In the late autumn of 2024, Linjiang City, an ancient city in the south of the Yangtze River shrouded in rain and fog, had a serial murder case that shocked the whole city. The seven deceased were all found dead at home late at night with strange signs of death: their pupils were dark purple, there was a strange smile at the corner of their mouths, and there were burn marks on their chests similar to the shape of a "note". The police initially determined that the death was caused by "poisoning", but the autopsy report showed that the body of the deceased contained some unknown neurotoxin, and the time of the poisoning was highly consistent with the time of the "music" the deceased had listened to.