My Sassy Girl (2012)

Original title: 牵牛的夏天

Qian Niu is just a typical boy. On flight to Shanghai, he meets a superstar named Xiao Xia. She accidentally takes his luggage and then it begins their hilariously funny story... He unexpectedly becomes Xiao Xia's personal assistant and Xiao Xia just couldn't help herself but bullies him