He is her most eccentric childhood sweetheart, one is the daughter of a taxi driver, and the other is the son of the president of a group company. However, her neighbor of nine years finally made her fall in love with him, but when she made up her mind to confess her love, she suddenly discovered that he was missing. Three years later, she was a top student in the law department of University H, and he was actually a teaching assistant to a famous professor in the law department. Destiny makes them meet again, how should they feel?