Kim Dain, a freshman who has lived her school years with passion and diligence, dreams of a perfect campus life with flawless grades, friendships, and extracurriculars. But Dain faces her first humiliation when she enters university alongside Kang Dain, who shares the same name but, unlike her, possesses both perfect looks and a flawless personality. She also begins to hang out with Nam Boyoung, who dreams of having perfect looks, leading her to an unexpected freshman life far different from what she had imagined. Will Dain be able to spend a perfect youth as she had planned? The most perfect campus life for young people who long for a “perfect self.”