She, Mu Ling, is a high school student in No. 1 Middle School in City A. She fell in love with a boy in her second year of high school, and that boy had a crush on another girl in the same class. A childish and magical love triangle is about to begin. What kind of entanglements will the three of them have... This is a novel with a diary as the theme, hoping to bring a new perspective to readers.