Jiang Muran, a single mother, ran away from home to escape marriage, but she didn't know that the marriage partner was actually Cheng Zhaobai, her arrogant junior student who she fell in love with at first sight! From her first meeting as a social worker who brought the wrong express delivery, to becoming her neighbor and boss, she desperately resisted the engagement, but he pressed on her step by step. Until she discovered that the fiancé she wanted to escape the most was Cheng Zhaobai, who made her heart beat faster.