Ruyi demoted Concubine Jia to a noble status with just a bracelet 

Court drama, stormy waves
A small thing can easily kill someone
From common people to the pinnacle of power
【Costume Theater】Take you to enjoy the wonderful palace battle drama
Ruyi only used a bracelet to expose Concubine Jia's crime of framing her to the public, and the emperor was furious and demoted her to a nobleman!
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