It Started With A Kiss" is about Yuan Xiang Qin (Ariel) who is in high school and although unintelligent, is very outgoing and confident. She has been in love with a smart A class student, Jiang Zhi Shu (Joe) since her freshman year of high school. The sad thing is that he is a classified genius with an IQ of 200 and the two are worlds apart. The drama starts out on the worst day of Xiang Qin's life. She gives Zhi Shu a letter professing her love for him but he cruelly rejects her with "I do not date stupid girls." That day, she goes home to her brand new house where she will be living with her dad only to have it totally collapse during a level 2 earthquake. Sad? It gets worse! Uncle and Auntie Li, her dad's good high school friends, want to repay him for introducing the two of them so long ago and offer them a place to stay. Xiang Qin is reluctant to intrude on a stranger's home, but ends up with the surprise of her life when Zhi Shu turns out to be their oldest son! The two of them will be sleeping across the hallway from each other and living in the same house!