In the summer of 2010, when Bai Xiao Yu met Wang Jin Jin for the first time in the college entrance examination room, he "lost" her. Four years later, they unexpectedly reunited in the crowd of job seekers during the graduation season and fell in love. In 2018, after having known each other for eight years and been in love for five years, they hesitated at the door of marriage. They love each other but cannot escape the heavy constraints of reality. Will Bai Xiao Yu lose Wang Jin Jin again?