The Xianxia genre is a little known genre outside of China. It is mainly sword fighting with celestial clans.
The heroes/ heroines in Xianxia stories are like those in the Wuxia stories, righting the wrongs and they are knight errants in the dangerous world of the supernatural and monsters.
Like the Heroes of Wuxia, Xianxia also have their own martial code of honor, the righteous code of honor.
Xian (仙) = Celestial
Xia (侠) = Heroes