Strangers in Public, Parents in Private

Down-on-his-luck window cleaner Jie Wangshu discovers her husband's affair with a mistress at work, divorces him, and starts a brave new life. After drinking at a bar, she accidentally has a one-night stand with the wealthy and misogynistic Cen Ye, then flees. The next day, Cen Ye becomes the homeroom teacher of their son, Xiao Man, to win her back. As they interact, they realize Wangshu is the woman from seven years ago and Xiao Man is their child. Together, they dismantle the conspiracy of Cen Ye's half-brother, reveal the truth, and restore their family's happiness.