When she first entered high school, Su Yu dropped out of school after three months due to physical reasons. It was already two months later when she came to school again. The school had reclassified classes. Su Yu was very low self-esteem and introverted for some reasons. In the new environment, she met Jiang Yuning, a girl who interested her at first sight, and she started a silent encounter and love.
Concept: My Secret Love Diary