Lin Xiaoman, who once fell into depression due to family changes and dropped out of school for a time, met the enthusiastic and straightforward Su Xiao and the cold-blooded academic Jiang Yu in the unfamiliar Class 7 of Senior High School. From being out of place and struggling alone at the beginning, to overcoming academic difficulties in the company of close friends and facing her inner fragility, she gradually dismantled the cocoon of "loneliness" through solving problems under the lamp late at night, persevering in relay races on the playground, and going through the ups and downs of mock exams, and completed her transformation through dialogue with herself and connections with others.
