Fourth Young Master, an illegitimate son of the main branch and Yun Tang's grand-nephew. He is described as thin and pitiful, born of a concubine. He was crying on the ground when Yun Tang found him being bullied by Yun Rui over the jade cicada. After Yun Tang intervened, he knelt respectfully, received his jade cicada back, and gave Yun Tang a grateful glance before darting away.