The male Zhang Zhang fell in love with the female Zhang Nan when he was ignorant. However, due to Zhang Nan's repeated conflicts and rejections, Zhang Zhang chose to give up after two years. What he didn't know was that Zhang Nan liked him before he liked herself, but she didn't have the same courage as him. Due to various misunderstandings and her own reasons, she kept choosing to escape. Later, when she grew up, she bravely faced her ten-year secret love history, but she forgot that Zhang Zhang had already changed...