Yu Tiantian is an obese girl, weighing160kg. She bravely showed her photos before losing weight in the program, so that everyone could witness her perfect transformation. Yu Tiantian, a girl from the northeast of China, calls herself "careless and heartless". She looks strong, but at heart she is a insecure little girl. After losing weight successfully, she incarnated as a "princess" and stepped onto the stage of "If You Are the One" with the expectation of "Prince", and bravely disclosed the photos before losing weight.