This started pretty solid! Funny, and cute but the storyline gets messy quickly.

Female lead is trying to find her lost brother and somehow ends up in the xianxia world. Xian Xia means (deity/god with powers/martial arts). The male lead takes in the female lead as a "sister" to increase his strengthen. The male lead is trying to become the leader of their sect. The male lead is dull and naive in relationship. The female lead is quirky and cute. She disguises as a male to go to school. On her journey she makes a friend who also happens to be a girl , crossdressing like a guy. The academy doesnt allow females.

There is also another sect called the demons. They are portrayed as bad. It so happens that her real brother somehow also transfer over into the xianxia world and became the demon sect's leader. One characteristic in order to have the powers is to have a ling gen (spirit root). Both the brother and the female lead doesnt have that. It's only when you have the spiritual root where you can increase and become stronger.

Cute/naive moments: The male lead calls kissing eating cotton candy ... haha.
Also he finally realizes he likes the female lead in another way not like brother/sister... But although their kisses are more like planting on the lips, there was some cute moments)

What made the story unbearable...
1. female lead's brother has an "adoptive" sister who has two personalities, one which is evil and tries to do evil things to sabotage the female lead and male lead because the evil adoptive sister is jealous of her adoptive brothers feelings for the female lead ) aka real sister. She also wants him to win the competition to become the leader over all...
2. The story becomes weird and boring....