Chenghui High School’s entrance fees were cut in half this year, hence Yan Shi who lived alone with her grandmother disguised as a boy to get enrolled in the high school. Help! She accidentally saw the school’s bad student banging the prettiest girl from the school next door in the toilet. Getting invited to shower together by her tall and handsome roommate, and getting caught by her classmate when she was trying to change her sanitary pad in the toilet. The hot boy next door always stared at her meaningfully, and her first time was taken by her gentle senior. She was engulfed into the world of lust ever since.