Lin Lin, a female high school classmate who failed the college entrance examination and suffered from mild depression, accidentally traveled to a different world during the summer to a female practitioner who had a similar fate to him.
She is also a girl who was teased by fate. By accident, Lin Lin became Siniang's substitute. Together they accepted various tests of friendship, love, affection, and trust. In the end, Lin Lin returned to reality, and Siniang also changed her destiny.