When Xu Zhixi had just started high school, she fell in love at first sight with Jiang Chaiyang, a student in Class One, on the bus. From then on, Xu Zhixi began her journey of secret love. In the second semester of her senior year, Jiang Chaiyang was discovered by a talent scout and became a trainee. Even on graduation day, Xu Zhixi never saw the person she loved again.
Years later, Xu Zhixi returned to her alma mater as a teacher, while Jiang Chaiyang had made his debut. One day, Xu Zhixi suddenly received the devastating news that Jiang Chaiyang had died by suicide. On her way to a coffee shop, she saw a white cat and inexplicably chased after it. When she opened her eyes again, she had returned to her student days in a parallel world.
