Xu was an elder of the Heaven's Edge's Su Clan.[1]

Elder Xu was the one who allowed Su Yonghuang to cultivate the Heaven's Edge's Su Clan's defining technique, the Solar Immortal Physique Merit Law when she was erroneously judged to be a natural born Minor Sky Physique, one of the two King Physiques from the Solar Immortal Physique's family.[1]


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