Other people’s “boy next door” is a sunny, warmhearted big brother who’s gentle and considerate. Ruan Mianmian’s “boy next door” is a prince charming in public and a rebellious, immature little devil in private. Just as the childhood sweetheart is nearing adulthood, her rebellious childhood friend, three and a half years younger, comes along. There’s none of the innocent closeness of childhood, and after they’re caught climbing over a wall, they become a couple caught in a muddle of truth and lies. Mianmian does her best to deny it, but the whole school already believes it. From then on, bickering and teasing each other become part of their daily routine... Eighteen-year-old Mianmian carries the guilt of “kidnapping” a younger boy as she strives to grow up on campus!