Amber Kamisato has confessed to 100 girls in her lifetime and was rejected. On the last day of middle school, she visits a shrine and prays that she'll get a girlfriend during her time in high school. Suddenly, the God of Love appears and tells Amber that she'll get a girlfriend, But due to an error on the God of Love's part, Amber is destined to have 100 which is to begin when she enters high school"

"Sure enough, on the first day of high school, Amber meets a nerdy looking girl"