The Bead of Sui Hou, as the name suggests, should be a bead, but no one seems to have actually seen the Bead of Sui Hou. Xiao Song said that the Bead of the Marquis of Sui has a temperature, and all the forces are moving to secretly find the whereabouts of the Bead of the Marquis of Sui.
The drama has been giving a close-up of the bracelet on Ran Yan's hand, in fact, the key to finding the bead of Sui Hou is Ran Yan, the bracelet on Ran Yan's hand is a relic left by Ran Yan's mother, which shows that the heroine may be the princess of Sui Dynasty.
There is a group of villainous forces that have been secretly searching for the whereabouts of the Bead of the Marquis of Sui, as they want to utilize the power of the Bead of the Marquis of Sui, by virtue of which they can go against the imperial court. Su Fu, as the hand of the Fire Ki Society, he is ordered to find the Pearl of Sui Hou. Su Fu gave Ran Yan a hairpin, which he told Ran Yan to wear at all times. In reality, Su Fu is using Ran Yan in transporting the Pearl of Sui Hou out of the city, only that the Pearl of Sui Hou on the hairpin he gave to the heroine is fake.
The bracelet Ran Yan wears on her hand is a relic left to her by her mother, and the red bead on top of the bracelet is actually the Bead of Sui Hou. It is believed that the Bead of Sui Hou will eventually fall into the hands of the righteous party and will not be allowed to be guided by the forces of evil. Ran Yan and Su Fu after because of the bracelet on the beads of the Sui Hou also born resentment, Ran Yan therefore to Su Fu feel disappointed and sad.