Observers, also known as observers and monitors, are inhuman things that only exist in ancient legends.
It is said that observers wander around the market, disguise themselves by observing and imitating human actions, and will not actively harm humans. However, if they stay in a certain place for a long time, it will cause a series of tragedies, so it is also regarded as an ominous sign.
When something unfortunate happens, it often gives some warning to the humans around them.
According to the "Anthology of Local Mysteries", there seems to be a tight organization among the observers, but due to their superb imitation skills, many rumors have not yet been verified.
——"Hundred Ghost Records"
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