Shi Xia and her brother, Shi Dong, have depended upon each other since childhood after losing their parents. Her brother mysteriously disappeared without a trace leaving Shi Xia to search for him ever since. One day, Shi Xia is teleported to a strange xianxia world where she meets the immortal Hou Chi, who adopts her as his little sister. Soon, Shi Dong reappears, now the leader of a feared demon sect. Hilarity ensues as the ‘brothers’ compete for the right to protect Shi Xia.