Between a scholarship or news regarding her long lost brother Shi Dong, Shi Xia rushes to the Internet cafe to get clues. She rushes to the carnival to find her brother, but instead mysteriously falls into a puddle that would transport her into another dimension. There, she is rescued and greeted by Hou Chi.

Shi Xia learns that women are not allowed inside of the Yuhua Sect one morning. While Shi Xia tries to find a way home, Hou Chi asks for help on how to become a good brother to protect his younger sister.

When Shi Xia mistakes Hou Chi as trying to pursue her, Hou Chi comes clean about wanting to be her brother. Hou Chi asks Bi Hong to let Shi Xia learn immoralities at YuHua College and dresses her up as a male scholar. At the dorm showers, she learns that her classmate Qing Feng is also a lady disguised as a man.

Hou Chi promises Shi Xia that she can be sent home once he is the lord of the Ten Thousand Immortals. In the meantime, Shi Xia promises to be his sister if Hou Chi could agree on 3 rules. During practice, Shi Xia learns the tree Hou Chi practices on is wilted. Shi Xia wants to fix the tree and asks Bi Hong for help.

Shi Xia tries to find a cure for the wilted spiritual tree but her treatment doesn't seem to work. She is saddened when she finds the tree is already missing the roots, meaning the tree is already rotten. When Shi Xia and Hou Chi accidentally kiss, Yi Yao Gua oversees and becomes extremely jealous. Yi Yao Gua tries to pressure her into saying the truth by the river.