After her transfer to a new school, Xia XiaoShu, a reformed troublemaker who was once involved in school violence, aimed to start afresh and live a regular academic life by projecting herself as a "Good Girl." Unfortunately, her former nemesis who had a grudge against her singled her out yet again, making her choose between either standing up for herself and risking the revelation of her past or proceeding passively and putting her friends in harm's way. Will she stay true to her "Good Girl" image or revert to her past behavior as the "Bad Girl"?